Vue Common Error Error in mounted hook Solution

Error in mounted hook

Error in mounted hook is one of the common errors in , which usually occurs in componentsmounted hook functionmiddle. The reason for this error may bemounted hook functionSome asynchronous operations are performed in this article, such as requesting interfaces or obtaining width and height information of DOM elements, resulting in the component being fully rendered, and these operations have already begun to be performed, thus causing an error.

Solution

Place asynchronous operations in the $nextTick method in the mounted hook function of the component to ensure that the component is fully rendered.

mounted () { this.$nextTick(() => { // Asynchronous operation }) } 

Use asynchronous programming methods such as Promise or async/await to ensure that asynchronous operations are executed after the component renders.

async mounted () { await this.$nextTick() // Asynchronous operation } 

Use some hook functions provided, such as created, beforeMount, etc., to execute asynchronous operations in these hook functions.

created () { // Asynchronous operation } 

In the applet, the content of the mounted hook function can be placed in the onLond method.

Notice

It should be noted that when using asynchronous programming methods such as Promise or async/await, you need to ensure your browser's support to avoid compatibility issues in some old browsers.

Summarize

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