Introduction to using the provide/inject method for Vue multi-level components

This time I will introduce to you the use of provide/inject method for Vue multi-level components. What are the precautions for using provide/inject for Vue multi-level components? The following are practical cases. , let’s take a look.

Vue official warning:

provide and inject mainly provide use cases for high-level plug-ins/component libraries. Not recommended for use directly in application code.

Of course, a warning is just a warning, you can use it normally.

The usage method is very similar to the combined gift package of data and props:

var Provider = {
 provide: {
 foo: 'bar'
 },
 // ...
}
var Child = {
 inject: ['foo'],
 created () {
 console.log(this.foo) // => "bar"
 }
 // ...
}

The only difference is that you don’t have to pass it in layer by layer. The event-bus used in the past can solve the problem of deep layers. problem, but it will cause the entire event-emit composition to be too confusing and difficult to maintain. Using provide / inject can ensure the clarity of parent-child unidirectional data flow.

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:

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