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catalogue 1, How Vue monitors data     1.Vue monitoring data range     2. How to monitor data in objects     3. How to monitor the data in the array     4. When modifying an element in the Vue array, you must use the following methods:     5. Case display 2, Collect form data 1, How Vue ...

reference resources demand Realize the picture preloading function. When each picture is loaded successfully and failed, the loadProgress and loadError functions need to be called respectively; After the image is loaded, you need to call the loadComplete function. Optional: The above three interface functions can be switched at any time and ...

Event binding (v-on) Example: <div class="app"> <!--@yes v-on:Short form of--> <button @click="myclick">click me</button> </div> var vm = new Vue({ el:'.app', data:{ }, methods:{ myclick:function(){ console.log('Hello!') //Click the button and the console will print ...

When you first use the script setup syntax, the editor will prompt that this is an experimental attribute. If you want to use it, you need a fixed vue version. At the end of June, the proposal was officially finalized. It will continue to be used in v3.1.3, but there will still be hints of experimental proposals. In V3.2, the hints will be remo ...

Step by step implementation of bidirectional data binding 1. reduce() method of array Application scenario: the initial value of the next operation, which depends on the return value of the last operation (1) Cumulative calculation of array Common implementation const arr = [1,2,3,4,5,6] let total = 0; arr.forEach(item=>{ total+=item ...

There are tens of millions of front-end frames, and the unique vue accounts for half I'm the fashion. Let's take a rocket to learn Vue                                    Chapter 1 ...

There are tens of millions of front-end frames, and the unique vue accounts for half I'm the fashion. Let's take a rocket to learn Vue   "Fashion learning Vue by rocket" -- Chapter 11: binding syntax of user-defined components and classes in Vue The last chapter recalled: "let me see it more!" the fashion said a litt ...

Preface After sorting out my own understanding of the principle of two-way binding of Vue data after learning, I by the way exclamate that Yuyuxi is too strong. If there are any errors, you are welcome to correct them. 1. Review of Basic Knowledge 1.1 Get attribute values chained using reduce method If the reduce method is not yet used ...

1, Foreword The contents of this paper include: Keep alive usage: dynamic component & Vue routerKeep alive source code analysisHook of keep alive component and its package componentRendering of keep alive component and its package component 2, Introduction and application of keep alive 2.1 what is keep alive Keep alive is an abstract ...

Setup is used to write composite APIs. Internal data and methods can only be used after passing return. Previously vue2, the data returned by data can be directly bound in both directions. If we bind the data types in setup directly in both directions, it is found that variables cannot respond in real time. Next, let's look at how setup impleme ...