Bootstap Tabs Vanilla JS shown event not working












1















I am trying to detect when a tab is shown through Vanilla JS and the event isn't working. I have looked through multiple questions about this and none of them seem to help. Here is my current code.






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





I have the console logs to make sure I am getting all the correct values and those are correct however the addEventListener isn't adding the event. When I click through tabs they do not trigger.



All the console logs show the correct elements, just the event isn't fired when switching between tabs.










share|improve this question

























  • BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

    – Yuri
    Jan 2 at 16:11











  • I dont want to use jQuery it to large of a library for no reason.

    – Alexander Beyer
    Jan 2 at 17:10
















1















I am trying to detect when a tab is shown through Vanilla JS and the event isn't working. I have looked through multiple questions about this and none of them seem to help. Here is my current code.






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





I have the console logs to make sure I am getting all the correct values and those are correct however the addEventListener isn't adding the event. When I click through tabs they do not trigger.



All the console logs show the correct elements, just the event isn't fired when switching between tabs.










share|improve this question

























  • BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

    – Yuri
    Jan 2 at 16:11











  • I dont want to use jQuery it to large of a library for no reason.

    – Alexander Beyer
    Jan 2 at 17:10














1












1








1








I am trying to detect when a tab is shown through Vanilla JS and the event isn't working. I have looked through multiple questions about this and none of them seem to help. Here is my current code.






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





I have the console logs to make sure I am getting all the correct values and those are correct however the addEventListener isn't adding the event. When I click through tabs they do not trigger.



All the console logs show the correct elements, just the event isn't fired when switching between tabs.










share|improve this question
















I am trying to detect when a tab is shown through Vanilla JS and the event isn't working. I have looked through multiple questions about this and none of them seem to help. Here is my current code.






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





I have the console logs to make sure I am getting all the correct values and those are correct however the addEventListener isn't adding the event. When I click through tabs they do not trigger.



All the console logs show the correct elements, just the event isn't fired when switching between tabs.






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('shown.bs.tab', function(e) {
console.log("Showing content for tab: " + e.target.href);
}, false);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>






javascript bootstrap-4 bootstrap-tabs






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share|improve this question








edited Jan 2 at 15:43









Alessio Cantarella

2,21031424




2,21031424










asked Jan 2 at 15:37









Alexander BeyerAlexander Beyer

357




357













  • BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

    – Yuri
    Jan 2 at 16:11











  • I dont want to use jQuery it to large of a library for no reason.

    – Alexander Beyer
    Jan 2 at 17:10



















  • BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

    – Yuri
    Jan 2 at 16:11











  • I dont want to use jQuery it to large of a library for no reason.

    – Alexander Beyer
    Jan 2 at 17:10

















BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

– Yuri
Jan 2 at 16:11





BS requires jQuery in order to let few of its component work properly, so can't you just got with jQuery?

– Yuri
Jan 2 at 16:11













I dont want to use jQuery it to large of a library for no reason.

– Alexander Beyer
Jan 2 at 17:10





I dont want to use jQuery it to large of a library for no reason.

– Alexander Beyer
Jan 2 at 17:10












2 Answers
2






active

oldest

votes


















1














According to this Stack Overflow post, you cannot use ".addEventListener" for custom jQuery events (e.g. "shown.bs.tab").



I cannot say why the jQuery ".on" version wouldn't work, though.






share|improve this answer
























  • Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

    – Alexander Beyer
    Jan 2 at 17:16



















-1














Your AddEventListener was wrong, as you weren't telling it what event you wanted to listen too. If you wanted to listen to the tab selection you should pass the click event handler.



Here is a JSFiddle as a sample http://jsfiddle.net/97nq823z/






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>








share|improve this answer
























  • If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

    – Dylan Wright
    Jan 2 at 15:54











  • I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

    – Alexander Beyer
    Jan 2 at 16:58












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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














According to this Stack Overflow post, you cannot use ".addEventListener" for custom jQuery events (e.g. "shown.bs.tab").



I cannot say why the jQuery ".on" version wouldn't work, though.






share|improve this answer
























  • Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

    – Alexander Beyer
    Jan 2 at 17:16
















1














According to this Stack Overflow post, you cannot use ".addEventListener" for custom jQuery events (e.g. "shown.bs.tab").



I cannot say why the jQuery ".on" version wouldn't work, though.






share|improve this answer
























  • Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

    – Alexander Beyer
    Jan 2 at 17:16














1












1








1







According to this Stack Overflow post, you cannot use ".addEventListener" for custom jQuery events (e.g. "shown.bs.tab").



I cannot say why the jQuery ".on" version wouldn't work, though.






share|improve this answer













According to this Stack Overflow post, you cannot use ".addEventListener" for custom jQuery events (e.g. "shown.bs.tab").



I cannot say why the jQuery ".on" version wouldn't work, though.







share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 17:02









Rafael MartinsRafael Martins

262




262













  • Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

    – Alexander Beyer
    Jan 2 at 17:16



















  • Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

    – Alexander Beyer
    Jan 2 at 17:16

















Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

– Alexander Beyer
Jan 2 at 17:16





Looks like you are correct and hence my code not working, it looks like if I use a library like thednp.github.io/bootstrap.native/v4.html I can get the native functions instead of the jquery ones to work correctly.

– Alexander Beyer
Jan 2 at 17:16













-1














Your AddEventListener was wrong, as you weren't telling it what event you wanted to listen too. If you wanted to listen to the tab selection you should pass the click event handler.



Here is a JSFiddle as a sample http://jsfiddle.net/97nq823z/






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>








share|improve this answer
























  • If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

    – Dylan Wright
    Jan 2 at 15:54











  • I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

    – Alexander Beyer
    Jan 2 at 16:58
















-1














Your AddEventListener was wrong, as you weren't telling it what event you wanted to listen too. If you wanted to listen to the tab selection you should pass the click event handler.



Here is a JSFiddle as a sample http://jsfiddle.net/97nq823z/






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>








share|improve this answer
























  • If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

    – Dylan Wright
    Jan 2 at 15:54











  • I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

    – Alexander Beyer
    Jan 2 at 16:58














-1












-1








-1







Your AddEventListener was wrong, as you weren't telling it what event you wanted to listen too. If you wanted to listen to the tab selection you should pass the click event handler.



Here is a JSFiddle as a sample http://jsfiddle.net/97nq823z/






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>








share|improve this answer













Your AddEventListener was wrong, as you weren't telling it what event you wanted to listen too. If you wanted to listen to the tab selection you should pass the click event handler.



Here is a JSFiddle as a sample http://jsfiddle.net/97nq823z/






var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>








var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>





var aTabs = document.querySelectorAll('a[data-toggle="tab"');
console.log(aTabs);
for (let i = 0; i < aTabs.length; i++) {
console.log(aTabs[i].id);
aTabs[i].addEventListener('click', writeToConsole(aTabs[i]));
}

function writeToConsole(tab) {
console.log(tab);
}

<ul class="nav nav-tabs" id="tab-navigation" role="tablist">
<li class="nav-item">
<a class="nav-link active" id="1link" data-toggle="tab" href="#1" role="tab" aria-controls="community" aria-selected="true">1 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="2link" data-toggle="tab" href="#2" role="tab" aria-controls="2" aria-selected="false">2 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="3link" data-toggle="tab" href="#3" role="tab" aria-controls="3" aria-selected="false">3 <span class="badge badge-primary"></span></a>
</li>
<li class="nav-item">
<a class="nav-link disabled" id="4link" data-toggle="tab" href="#4" role="tab" aria-controls="4" aria-selected="false">4 <span class="badge badge-primary"></span></a>
</li>
</ul>
<div class="tab-content" id="tab-navigation-content">
<div class="tab-pane fade show active" id="1" role="tabpanel" aria-labelledby="tab1"></div>
<div class="tab-pane fade" id="2" role="tabpanel" aria-labelledby="tab2"></div>
<div class="tab-pane fade" id="3" role="tabpanel" aria-labelledby="tab3"></div>
<div class="tab-pane fade" id="4" role="tabpanel" aria-labelledby="tab4"></div>
</div>






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 15:53









Dylan WrightDylan Wright

638715




638715













  • If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

    – Dylan Wright
    Jan 2 at 15:54











  • I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

    – Alexander Beyer
    Jan 2 at 16:58



















  • If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

    – Dylan Wright
    Jan 2 at 15:54











  • I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

    – Alexander Beyer
    Jan 2 at 16:58

















If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

– Dylan Wright
Jan 2 at 15:54





If you want something more specific on the click you'll have to play around with what you want. If you want it to happen on the click itself you'll have to figure that out on your own.

– Dylan Wright
Jan 2 at 15:54













I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

– Alexander Beyer
Jan 2 at 16:58





I am telling it what event I want it to follow. shown.bs.tab this is according to the documentation on bootstrap 4

– Alexander Beyer
Jan 2 at 16:58


















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