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This article mainly introduces JavaScript how to make a delay timer, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

In JavaScript, you can use the setTimeout () function to set a delay timer, which is used to call a function or evaluate an expression after a specified number of milliseconds, with the syntax "setTimeout (code,millisec)".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

In JavaScript, you can use the setTimeout () function to set a delay timer.

The setTimeout () function is used to execute some code only once after a specified time (in milliseconds).

Syntax format:

SetTimeout (code,millisec)

Parameter description:

Code: required. The JavaScript code string to be executed after the function to be called. Can be a function

Millisec is required. The number of milliseconds to wait before executing the code.

Code example:

JavaScript var myFun = function (str = 'JavaScript') {[xss_clean] (str + "

");}; setTimeout (myFun, 500, 'Hello'); setTimeout (myFun, 1000); setTimeout (function () {[xss_clean] (" timer)

");}, 1500) setTimeout (" [xss_clean] (\ "setTimeout ()\") ", 2000)

Effect picture:

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