Mixing
How to use await with setTimeout and setInterval?
I have a function createSession for getting users with returned session object. createSession either returns users or throws string exception. My code is as follow, if session is successfull (which means I have users) continue code.
However I do not know when users are available because other resources also asks for it. So, I want a modify my code that it will try getting users in a timeout, lest say try it every 1 second until timeout 30 seconds reached.
async function callTest() {
const capabilities = {
type: {
chrome: 2
}
}
var session = await working.createSession(capabilities)
if(!session) return
callTest()
// remaining code goes here
}
I though to use setTimout in a promise but the problem is I can not use await inside a normal function. Can someone help me fixing my code ?
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
var id = setInterval(function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
});
}, 10);
});
}
javascript async-await
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
add a comment |
I have a function createSession for getting users with returned session object. createSession either returns users or throws string exception. My code is as follow, if session is successfull (which means I have users) continue code.
However I do not know when users are available because other resources also asks for it. So, I want a modify my code that it will try getting users in a timeout, lest say try it every 1 second until timeout 30 seconds reached.
async function callTest() {
const capabilities = {
type: {
chrome: 2
}
}
var session = await working.createSession(capabilities)
if(!session) return
callTest()
// remaining code goes here
}
I though to use setTimout in a promise but the problem is I can not use await inside a normal function. Can someone help me fixing my code ?
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
var id = setInterval(function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
});
}, 10);
});
}
javascript async-await
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
add a comment |
I have a function createSession for getting users with returned session object. createSession either returns users or throws string exception. My code is as follow, if session is successfull (which means I have users) continue code.
However I do not know when users are available because other resources also asks for it. So, I want a modify my code that it will try getting users in a timeout, lest say try it every 1 second until timeout 30 seconds reached.
async function callTest() {
const capabilities = {
type: {
chrome: 2
}
}
var session = await working.createSession(capabilities)
if(!session) return
callTest()
// remaining code goes here
}
I though to use setTimout in a promise but the problem is I can not use await inside a normal function. Can someone help me fixing my code ?
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
var id = setInterval(function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
});
}, 10);
});
}
javascript async-await
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
I have a function createSession for getting users with returned session object. createSession either returns users or throws string exception. My code is as follow, if session is successfull (which means I have users) continue code.
However I do not know when users are available because other resources also asks for it. So, I want a modify my code that it will try getting users in a timeout, lest say try it every 1 second until timeout 30 seconds reached.
async function callTest() {
const capabilities = {
type: {
chrome: 2
}
}
var session = await working.createSession(capabilities)
if(!session) return
callTest()
// remaining code goes here
}
I though to use setTimout in a promise but the problem is I can not use await inside a normal function. Can someone help me fixing my code ?
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
var id = setInterval(function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
});
}, 10);
});
}
javascript async-await
javascript async-await
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
edited Feb 5 '18 at 8:09
Tomasz Mularczyk
14.3k857100
14.3k857100
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
asked Feb 5 '18 at 8:00
Rasim AVCIRasim AVCI
50110
50110
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can try to use it like this and it should work well
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
setInterval(async function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
}, 10);
});
}
You should add async keyword to function definition in setInterval, because await can only work in async functions.
Update: also move ,10 parameter from Promise definition to setInterval one
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
Functions need to beasyncto be allowed toawaitthings.
– Jesper
Feb 5 '18 at 8:28
your, 10argument will be passed to thenew Promise()constructor. And there should probably be a note about the fact thatsetIntervalwill not wait for its inner code to finish before triggering again. In this case, a recursivesetTimeoutwould probably be better.
– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f48618023%2fhow-to-use-await-with-settimeout-and-setinterval%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can try to use it like this and it should work well
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
setInterval(async function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
}, 10);
});
}
You should add async keyword to function definition in setInterval, because await can only work in async functions.
Update: also move ,10 parameter from Promise definition to setInterval one
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
Functions need to beasyncto be allowed toawaitthings.
– Jesper
Feb 5 '18 at 8:28
your, 10argument will be passed to thenew Promise()constructor. And there should probably be a note about the fact thatsetIntervalwill not wait for its inner code to finish before triggering again. In this case, a recursivesetTimeoutwould probably be better.
– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
add a comment |
You can try to use it like this and it should work well
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
setInterval(async function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
}, 10);
});
}
You should add async keyword to function definition in setInterval, because await can only work in async functions.
Update: also move ,10 parameter from Promise definition to setInterval one
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
Functions need to beasyncto be allowed toawaitthings.
– Jesper
Feb 5 '18 at 8:28
your, 10argument will be passed to thenew Promise()constructor. And there should probably be a note about the fact thatsetIntervalwill not wait for its inner code to finish before triggering again. In this case, a recursivesetTimeoutwould probably be better.
– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
add a comment |
You can try to use it like this and it should work well
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
setInterval(async function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
}, 10);
});
}
You should add async keyword to function definition in setInterval, because await can only work in async functions.
Update: also move ,10 parameter from Promise definition to setInterval one
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
You can try to use it like this and it should work well
var checkAuth = function(capabilities) {
return new Promise(function(resolve) {
setInterval(async function() {
var session = await working.createSession(capabilities)
if (session) {
clearInterval(id);
resolve(id);
}
}, 10);
});
}
You should add async keyword to function definition in setInterval, because await can only work in async functions.
Update: also move ,10 parameter from Promise definition to setInterval one
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
edited Jan 2 at 11:59
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
answered Feb 5 '18 at 8:07
ryodeushiiryodeushii
796
796
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
Functions need to beasyncto be allowed toawaitthings.
– Jesper
Feb 5 '18 at 8:28
your, 10argument will be passed to thenew Promise()constructor. And there should probably be a note about the fact thatsetIntervalwill not wait for its inner code to finish before triggering again. In this case, a recursivesetTimeoutwould probably be better.
– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
add a comment |
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
Functions need to beasyncto be allowed toawaitthings.
– Jesper
Feb 5 '18 at 8:28
your, 10argument will be passed to thenew Promise()constructor. And there should probably be a note about the fact thatsetIntervalwill not wait for its inner code to finish before triggering again. In this case, a recursivesetTimeoutwould probably be better.
– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
1
1
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
You should explain what you changed and why it is ok to make that change.
– Felix Kling
Feb 5 '18 at 8:26
2
2
Functions need to be
async to be allowed to await things.– Jesper
Feb 5 '18 at 8:28
Functions need to be
async to be allowed to await things.– Jesper
Feb 5 '18 at 8:28
your
, 10 argument will be passed to the new Promise() constructor. And there should probably be a note about the fact that setInterval will not wait for its inner code to finish before triggering again. In this case, a recursive setTimeout would probably be better.– Kaiido
Feb 5 '18 at 8:37
your
, 10 argument will be passed to the new Promise() constructor. And there should probably be a note about the fact that setInterval will not wait for its inner code to finish before triggering again. In this case, a recursive setTimeout would probably be better.– Kaiido
Feb 5 '18 at 8:37
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
@Kaiido, My fault, but only tested async-await functionality
– ryodeushii
Feb 5 '18 at 8:40
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
"You should add async keyword to function definition in setInterval, because await can only work in async functions. " yet you did not use async in the actual code piece, making you answer not actually make sense. Please edit and clarify.
– mibbit
Jun 13 '18 at 23:29
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f48618023%2fhow-to-use-await-with-settimeout-and-setinterval%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
