jQuery上的trigger('click')和click()有什么区别 [英] What's the difference between trigger('click') and click() on jQuery

问题描述

我正在寻找两者之间的性能差异，在SSE中找不到关于此主题的好答案.

I'm looking for the difference in performance between those two, I could not found in SSE no good answer about this topic.

一些例子会很有帮助.

推荐答案

如果您查看jQuery代码，您会发现click()的全部工作是执行trigger('click'):

If you look at the jQuery code you can see that all click() does is execute trigger('click'):

jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {

// Handle event binding
jQuery.fn[ name ] = function( data, fn ) {
    if ( fn == null ) {
        fn = data;
        data = null;
    }

    return arguments.length > 0 ?
        this.on( name, null, data, fn ) :
        this.trigger( name );
};

请注意:

    return arguments.length > 0 ?
        this.on( name, null, data, fn ) :
        this.trigger( name );

换句话说，如果没有参数传递给click，请执行trigger('click')".

In other words, "If no arguments are passed to click, execute trigger('click')".

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