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This article mainly explains "what happens when Android Mini Program uses the arrow function", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what happens when Android Mini Program uses the arrow function"!

If you use the arrow function directly in Mini Program, you will lose this. The code is as follows:

Page ({

OnLoad: () > {

Console.log (this)

/ / the current this does not point to the current page

}

})

In this case, it is very inconvenient to achieve many functions, such as accepting parameters and pulling information according to parameters.

My solution is simple, using the immediate execution function code as follows:

Page ({

OnLoad: function () {

Let that = this

; (async () = > {

Console.log (that)

/ / the scope of using that,that is still page object

/ / happily call any other operation and enjoy asynchronous synchronous writing

Await that.login ()

Await that.query ()

) ()

}

}) at this point, I believe you have a deeper understanding of "what happens when Android Mini Program uses the arrow function", so you might as well do it in practice! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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