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Home Web Front-end JS Tutorial Introduction to the usage of jQuery selector element

Introduction to the usage of jQuery selector element

Jun 20, 2017 pm 04:30 PM
element jquery introduce usage Selector

Definition and usage

element selector selects elements with the specified tag name.

Tag nameQuote The text between the < and > of the HTML tag.

Syntax

$(tagname)

Parameters ? ? ? ? ? ? ? ? Description

tagname ? ? ? ? required. Specifies the name of the element to be selected.

Under IE and Firefox, the methods of dynamically creating elements are different.

The following code can be run under IE, but an error will be reported under Firefox

 var theform = document.forms[0]; theform.appendChild(document.createElement("<input type=&#39;hidden&#39; name=&#39;EVENTTARGET&#39;>"));
在 Firefox 只支持:document.createElement(&#39;input&#39;)

If If you add attributes and events, you need to use the setAttribute method

Use jquery to dynamically create elements, which can support IE and Firefox

 var theform = document.forms[0];
  $("<input type=&#39;hidden&#39; name=&#39;EVENTTARGET&#39;>").appendTo(theform);
at the same time

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