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This article is about how to verify that an element exists in a collection of jquery objects. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Verify that the element exists in the collection of jquery objects

$(document) .ready (function () {if ($('# id') .length) {/ / do something}}) Jquery is what jquery is a simple and fast JavaScript library, it has a unique chain syntax and short and clear multi-function interface, efficient and flexible css selector, and can be extended to CSS selector, with convenient plug-in extension mechanism and rich plug-ins, after Prototype is another excellent JavaScript code base, can be used to simplify event processing, HTML document traversal, Ajax interaction and animation, in order to quickly develop the website.

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