A brief discussion on several solutions to jQuery multi-library conflict problems

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Method 1: Use noConflict(): discard $, replace $ with jQuery

jQuery.noConflict();

Method 2: Custom variables: discard $ and define a new $y variable to replace $

var $y = jQuery.noConflict();

Method 3: Use statement block ①: Use $

jQuery.noConflict();
jQuery(document).ready(function ($){
    //此时整个ready事件中使用的$为jQuery，js中定义的$;
});

inside the local area. Method 4: Use statement block ②: Call the function directly, use $ instead of jQuery, jQuery is written in Later, common methods

jQuery.noConflict();
(function($){
    //此时在这个语句块中使用的$为jQuery，js中定义的$;
})(jQuery)

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