How vue reverses arrays
This article mainly explains "vue how to reverse the array", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "vue how to reverse the array" bar!
In vue, you can use the "v-for" instruction and calculation properties to reverse the array, syntax "and" computed: {reverseDIV () {return this.items.reverse ()}} ".
The operating environment of this tutorial: windows7 system, vue2.9.6 version, DELL G3 computer.
The method of inverting arrays in vue
Method 1:
{{item}} export default {name: "List", data () {return {items: [1meme 2Jing 3Jing 4]},}
Method 2 (calculate attributes):
{{item}} export default {name: "List", data () {return {items: [1,2,3,4]}}, computed: {reverseDIV () {return this.items.reverse ()}
Description: calculation attribut
Type: {[key: string]: Function | {get: Function, set: Function}}
Details:
The calculation properties will be mixed into the Vue instance. The this contexts of all getter and setter are automatically bound to Vue instances.
Note that if you use the arrow function for a calculated property, this does not point to an instance of the component, but you can still access its instance as the first argument to the function.
Computed: {aDouble: vm = > vm.a * 2}
The result of the calculated property is cached and will not be recalculated unless the dependent responsive property changes. Note that if a dependency (such as a non-responsive property) is outside the scope of the instance, the calculated property will not be updated.
Mainly a series of operations we carried out without polluting the source data.
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