How to use javascript focus

This article mainly explains "how to use javascript focus". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn how to use javascript focus.

The usage of javascript focus: 1, create a html file named focus; 2, add styles; 3, add button and p tags; 4, create a custom function myfocus;5, focus a tag through the focus method.

This article operating environment: Windows7 system, javascript1.8.5 version, DELL G3 computer

What is the use of javascript focus?

The method of using focus for dom objects in javascript:

Create a html file named focus

Add a style to set the focus of the a link or activate the style to red

Add button and p tags, and use the focus method after triggering the event

Create a custom function myfocus

Get the id object of an in the custom function. Focus a tag by focus method

Open the file in the browser and click button to change the color of a tag from blue to red

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