vue.js list to array

Vue.js is a very popular front-end JavaScript framework. It provides developers with an easy way to build complex single-page applications. In Vue.js, arrays are usually used to represent lists, data tables, and other data structures that require dynamically adding or removing elements.

However, sometimes, we need to convert the Vue.js list into a normal JavaScript array. This can be done by using Vue.js’ built-in functions.

Vue.js provides a function called "Vue.set()" for changing the value in the Vue.js data object. This function accepts three parameters: object, index and new value. Using Vue.set() ensures that the view is re-rendered. When the object is modified, Vue.js will detect these modifications and update the view.

Suppose we have a Vue.js list containing the following data:

data: {
list: [

{name: 'John', age: 25}, {name: 'Mary', age: 30}, {name: 'Bob', age: 35},

]
}

At this point, we want to convert each object in the list into an array. This can be done by using Vue.js’s vm.$set() method. The vm.$set() method allows us to add dynamic properties to the Vue instance.

In the Vue instance, we can define a new empty array to store the converted list object. We can then use Vue.set() to put each list object into this empty array.

The following is an example:

data: {
list: [

{name: 'John', age: 25}, {name: 'Mary', age: 30}, {name: 'Bob', age: 35},

],
arr: []
},
created() {
this.list.forEach((item, index) => {

this.$set(this.arr, index, item);

})
}

In this example, we use Vue. The forEach() method in js is used to iterate through all elements in the list. For each element, create a new position in the empty array and point it to the element. Also, use the vm.$set() method to ensure that this new location is added to the Vue.js instance.

Now, we have successfully converted the Vue.js list into a JavaScript array. We can use this array in the template to store data instead of using Vue.js's list.

Summary:

In Vue.js, use the Vue.set() method to convert a list into an array. This ensures that the view is re-rendered and should be used in situations where a Vue.js application needs to dynamically add or remove elements. By using the Vue.set() method, you can use a normal JavaScript array to store data instead of having to use Vue.js's list.

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