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This article mainly introduces the relevant knowledge of "what does init refer to in JavaScript". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "what does init refer to in JavaScript" can help you solve the problem.

In JavaScript, init means "initialize"; a specific init () function can be used to initialize an entire web page, in which case it can be called from "document.ready" or onload processing, with the syntax "init:function (parameter) {js statement}".

The operating environment of this tutorial: windows10 system, javascript1.8.5 version, Dell G3 computer.

What does init mean in JavaScript?

The word "init" means beginning in English.

When programming, it means "initialization", which is what a program is about to execute at the beginning.

JavaScript does not have a built-in init () function, that is, it is not part of the language. However, it is not uncommon for individual programmers to create their own init () function for initialization (in many languages).

A specific init () function can be used to initialize the entire web page, in which case it may be called from document.ready or onload processing, or it may initialize a specific type of object, or. All right, you name it.

What any given init () does actually depends on what the person who wrote it needs it to do. Some types of code do not require any initialization.

Init is a custom method name, which is literally used to initialize page variables. Your above code means that the initialization method is executed after the current web page is loaded (when the browser opens a web page, it will trigger the onload method of the window object, and the initialization method named init will be executed by your above code).

In fact, the following way of writing is also possible, so that you can more easily understand (also known as anonymous methods, the so-called anonymous methods do not have a method name. ):

_ window.onload = init () {var TestStrA = "abc"; var TestStrB = "def"; var TestStrC = TestStrA + TestStrB;alert (TestStrC);} that's all for "what init means in JavaScript". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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