Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "how jQuery changes the properties of input". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

JQuery changes the input attribute by: 1, open the corresponding front-end code file; 2, change the input attribute by applying disabled and readonly attributes to the element.

This article operating environment: Windows7 system, jquery3.2.1 version, DELL G3 computer

How does jQuery change the properties of input?

Jquery action button to modify the corresponding input attribute

Click the modify button on the right to modify the attributes of disabled and readonly in the corresponding input.

Function () {$(this) .prev () .children ("input") .removeAttr ("readonly");})

Jquery's api provides a way to apply disabled and readonly attributes to elements. Here, interested friends can practice their hands.

The method of applying disabled and readonly attributes to an element is provided in Jquery's api, which is recorded here. As follows

$('input') .attr ("readonly", "readonly") / / set the input element to readonly $(' input') .removeAttr ("readonly"); / / remove the readonly attribute if ($('input'). Attr ("readonly") = true) of the input element / / determine whether the readonly attribute has been set for the input element

There are two other ways to set the readonly attribute for an element and to cancel the readonly attribute:

$('input'). Attr ("readonly", true) / / set the input element to readonly $(' input'). Attr ("readonly", false) / / remove the readonly attribute $('input') of the input element. Attr ("readonly", "readonly") / / set the input element to readonly $(' input'). Attr ("readonly", ") / remove readonly attribute 2.disabled $('input') of input element. Attr (" disabled ") "disabled") / / set the input element to disabled $('input') .removeAttr ("disabled") / / remove the disabled attribute if ($('input') .attr ("disabled") = = true) of the input element / / determine whether the input element has the disabled attribute set

There are two other ways to set the disabled attribute for an element and to cancel the disabled attribute:

$('input'). Attr ("disabled", true) / / set the input element to disabled $(' input'). Attr ("disabled", false) / / remove the disabled attribute $('input') of the input element. Attr ("disabled", "disabled") / / set the input element to disabled $(' input'). Attr ("disabled", ") / remove the disabled attribute of the input element" how jQuery changes the attributes of input "ends here. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.