for example, I wrote:
: {
data:() => { return {arr: []} }
}: {
data:() => { return {arr: null} }
}createdthis.arr
this.arr
(:arr)
for example, I wrote:
: {
data:() => { return {arr: []} }
}: {
data:() => { return {arr: null} }
}createdthis.arr
this.arr
(:arr)maybe you have a component that binds arr, and handles null, by reporting an error. If it's just Vue, I don't repeat the problem
< hr >on August 13, 2018, 14-26-12-42, it was found that the problem was supplemented
.then let me add one more point.
according to the lifecycle of the vue instance, Created is prior to template rendering, but asynchronous operations do not block the lifecycle.
that is, although the requested data is in Created, the data has not been obtained before the instance template is rendered.
then the arr in the template will report an error when it is still used by null,.
there is no way to block the life cycle of an instance in Vue. If you use Vue-router, you can use the hook of beforeRouterEnter to get the data, and then jump to
what's wrong with misreporting?
template, and if the value is changed to null, an error will be reported.
for example, if you write the following code in native JS, native JS will also report an error
https://cn.vuejs.org/v2/guide.
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