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This article mainly introduces the JS how to imitate the JQuery selector function related knowledge, the content is detailed and easy to understand, the operation is simple and fast, has a certain reference value, I believe that everyone after reading this JS how to imitate the JQuery selector function article will have a harvest, let's take a look.

As the most widely used JS library, one of the most powerful functions of JQuery is the selector function that covers almost all methods and the code is very short. We can also implement this function with our own code, and the code logic and usage are consistent with JQuery.

Function ZQuery (arg) {this.elements = []; / save something this.domString =''; / / Save string label if (typeof arg=='function') {/ / DOMReady DOMReady (arg);} else if (typeof arg=='string' | | arg instanceof String) {if (arg.indexOf (')

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