[Vue warn]: Avoid using non-primitive value as key, use string/number value instead
I'm building a clone of HackerNews and am getting the following error:
vue.esm.js?efeb:591 [Vue warn]: Avoid using non-primitive value as key, use string/number value instead.
found in
---> <Single> at src/components/Single.vue
<App> at src/App.vue
<Root>
The error seems to be coming from Single.vue but I can't work what it is? The template is as follows:
<template>
<div class="container">
<h2>{{ story.title }}</h2>
<p>Score: {{ story.score }}</p>
<p>{{ story.url }}</p>
<div v-for="comment in comments" :key="comment">
<div class="comment-wrap">
<div class="comment-block">
<p class="comment-text">{{ comment.text }}</p>
<div class="bottom-comment">
<div class="comment-author">{{ comment.by }}</div>
<div class="comment-date">{{ comment.time }}</div>
</div>
</div>
</div>
</div>
</div>
</template>
If anyone out there can help, that would be great!?
javascript vue.js
add a comment |
I'm building a clone of HackerNews and am getting the following error:
vue.esm.js?efeb:591 [Vue warn]: Avoid using non-primitive value as key, use string/number value instead.
found in
---> <Single> at src/components/Single.vue
<App> at src/App.vue
<Root>
The error seems to be coming from Single.vue but I can't work what it is? The template is as follows:
<template>
<div class="container">
<h2>{{ story.title }}</h2>
<p>Score: {{ story.score }}</p>
<p>{{ story.url }}</p>
<div v-for="comment in comments" :key="comment">
<div class="comment-wrap">
<div class="comment-block">
<p class="comment-text">{{ comment.text }}</p>
<div class="bottom-comment">
<div class="comment-author">{{ comment.by }}</div>
<div class="comment-date">{{ comment.time }}</div>
</div>
</div>
</div>
</div>
</div>
</template>
If anyone out there can help, that would be great!?
javascript vue.js
add a comment |
I'm building a clone of HackerNews and am getting the following error:
vue.esm.js?efeb:591 [Vue warn]: Avoid using non-primitive value as key, use string/number value instead.
found in
---> <Single> at src/components/Single.vue
<App> at src/App.vue
<Root>
The error seems to be coming from Single.vue but I can't work what it is? The template is as follows:
<template>
<div class="container">
<h2>{{ story.title }}</h2>
<p>Score: {{ story.score }}</p>
<p>{{ story.url }}</p>
<div v-for="comment in comments" :key="comment">
<div class="comment-wrap">
<div class="comment-block">
<p class="comment-text">{{ comment.text }}</p>
<div class="bottom-comment">
<div class="comment-author">{{ comment.by }}</div>
<div class="comment-date">{{ comment.time }}</div>
</div>
</div>
</div>
</div>
</div>
</template>
If anyone out there can help, that would be great!?
javascript vue.js
I'm building a clone of HackerNews and am getting the following error:
vue.esm.js?efeb:591 [Vue warn]: Avoid using non-primitive value as key, use string/number value instead.
found in
---> <Single> at src/components/Single.vue
<App> at src/App.vue
<Root>
The error seems to be coming from Single.vue but I can't work what it is? The template is as follows:
<template>
<div class="container">
<h2>{{ story.title }}</h2>
<p>Score: {{ story.score }}</p>
<p>{{ story.url }}</p>
<div v-for="comment in comments" :key="comment">
<div class="comment-wrap">
<div class="comment-block">
<p class="comment-text">{{ comment.text }}</p>
<div class="bottom-comment">
<div class="comment-author">{{ comment.by }}</div>
<div class="comment-date">{{ comment.time }}</div>
</div>
</div>
</div>
</div>
</div>
</template>
If anyone out there can help, that would be great!?
javascript vue.js
javascript vue.js
asked Nov 21 '18 at 20:33
jnowebjnoweb
3151411
3151411
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You can simply avoid the use of :key
in your v-for
.
...
<div v-for="comment in comments">
...
As vuejs documentation said:
It is recommended to provide a key with v-for whenever possible, unless the
iterated DOM content is simple, or you are intentionally relying on the
default behavior for performance gains.
add a comment |
The warning sources from <div v-for="comment in comments" :key="comment">
, where the object comment
is used as a key
for v-for
. The meaning of the warning is quite literal, don't use Object as key.
Use unique primitive value as key, maybe something like comment.id
or ${comment.time}${comment.by}
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can simply avoid the use of :key
in your v-for
.
...
<div v-for="comment in comments">
...
As vuejs documentation said:
It is recommended to provide a key with v-for whenever possible, unless the
iterated DOM content is simple, or you are intentionally relying on the
default behavior for performance gains.
add a comment |
You can simply avoid the use of :key
in your v-for
.
...
<div v-for="comment in comments">
...
As vuejs documentation said:
It is recommended to provide a key with v-for whenever possible, unless the
iterated DOM content is simple, or you are intentionally relying on the
default behavior for performance gains.
add a comment |
You can simply avoid the use of :key
in your v-for
.
...
<div v-for="comment in comments">
...
As vuejs documentation said:
It is recommended to provide a key with v-for whenever possible, unless the
iterated DOM content is simple, or you are intentionally relying on the
default behavior for performance gains.
You can simply avoid the use of :key
in your v-for
.
...
<div v-for="comment in comments">
...
As vuejs documentation said:
It is recommended to provide a key with v-for whenever possible, unless the
iterated DOM content is simple, or you are intentionally relying on the
default behavior for performance gains.
answered Nov 21 '18 at 20:40
jotadejotade
613
613
add a comment |
add a comment |
The warning sources from <div v-for="comment in comments" :key="comment">
, where the object comment
is used as a key
for v-for
. The meaning of the warning is quite literal, don't use Object as key.
Use unique primitive value as key, maybe something like comment.id
or ${comment.time}${comment.by}
add a comment |
The warning sources from <div v-for="comment in comments" :key="comment">
, where the object comment
is used as a key
for v-for
. The meaning of the warning is quite literal, don't use Object as key.
Use unique primitive value as key, maybe something like comment.id
or ${comment.time}${comment.by}
add a comment |
The warning sources from <div v-for="comment in comments" :key="comment">
, where the object comment
is used as a key
for v-for
. The meaning of the warning is quite literal, don't use Object as key.
Use unique primitive value as key, maybe something like comment.id
or ${comment.time}${comment.by}
The warning sources from <div v-for="comment in comments" :key="comment">
, where the object comment
is used as a key
for v-for
. The meaning of the warning is quite literal, don't use Object as key.
Use unique primitive value as key, maybe something like comment.id
or ${comment.time}${comment.by}
answered Nov 21 '18 at 20:37


William ChongWilliam Chong
919416
919416
add a comment |
add a comment |
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