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This article mainly talks about "what is the event method when javascript loses focus". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what is the event method when javascript loses focus?"

In JavaScript, a loss of focus event is a blur () event, which specifies that a blur event occurs when an element loses focus, or specifies a function to run when a blur event occurs, with syntax of "$(selector) .blur ()" or "$(selector) .blur (function)".

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

What was the event in which javascript lost focus?

The blur event occurs when an element loses focus.

The blur () method triggers the blur event, or specifies the function to run when the blur event occurs.

Tip: this method is often used with the focus () method.

Grammar

Trigger the blur event for the selected element:

(selector) .blur ()

Add a function to the blur event:

$(selector) .blur (function)

Examples are as follows:

(document) .ready (function () {$("# btn1") .click (function () {$("input"). Focus ();}); $("# btn2") .click (function () {$("input"). Blur ();}); enter your name:

Trigger focus event trigger blur event

Output result:

Examples are as follows:

(document) .ready (function () {$("input") .focus (function () {$(this) .css ("background-color", "red");}); $("input") .blur (function () {$(this) .css ("background-color", "green");}); name:

Email:

Output result:

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