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jQuery study notes jQuery prototype properties and methods_jquery

WBOY
Release: 2016-05-16 16:45:24
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复制代码 代码如下:

jQuery.fn = jQuery.prototype = {
     constructor: jQuery,
     init: function( selector, context, rootjQuery ) { },
    selector: "",       
    jquery: "1.7.2",       
    length: 0,       
    size: function() {},
    toArray: function() {},       
    get: function( num ) {},      
    pushStack: function( elems, name, selector ) {},      
    each: function( callback, args ) {},
    ready: function( fn ) { },
    eq: function( i ) {},
    first: function() {},
    last: function() { },
    slice: function() {},
    map: function( callback ) { },
    end: function() { },      
    push: push,
    sort: [].sort,
    splice: [].splice
        };

以上就是该版本的jQuery的原型上的部分属性和方法.
selector:用于记录init参数的selector.但不一定是相等的.
$("div").selector;//"div"
$("div").find(p).selecctor;//"div p";
这个属性一般用于调试.
jquery:jQuery的版本号.
length:元素的个数.
size():等效于length,length的内存开销更小.
剩下的成员在后面的章节中介绍.

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