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How to turn off the caching function of Vue calculated properties

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php中世界最好的语言Original
2018-04-12 13:53:101379browse

This time I will show you how to turn off the caching function of Vue's calculated property, and what are the precautionsfor turning off the Vue calculated property caching function. , the following is a practical case, let’s take a look.

Friends who use Vue will know the calculated properties of vue. This is explained in this way. When certain dependency values ​​change, its own value will also change, and the DOM related to it will also change. Usually, there are two methods in this calculated attribute: get and set can be used.

Here I will only analyze how to turn off the cache of calculated attributes and obtain the latest data, as shown in the following example:

HTML code

<p id="mess">
    <p>{{exapm}}</p>
  </p>

JS code:

 var vue2 = new Vue({
    el:"#mess",
    data:{
      sendmess:" i dhsjknkjvnkrenvr"
    },
  computed:{
    exapm:{
      cache:false,
      get:function(){
        return Date.now()+this.sendmess
      }
    }
    }
  });

We need to set cache to false, so that the cache is cleared and our time is the current time every time.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

AjaxUpLoad.js for file upload

How to use Vue’s carousel component

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