JQuery data 接口是什么? .data() Store arbitrary data associated with the matched elements or return the value at the named data store for the first element in the set of matched elements. 根据jquery官网介绍,data给存储DOM关联的数据, 设置数据是对$选取的所有JQuery对象, 获取数据是对$选取的所有对象的
jquery.data()文档:http://api.jquery.com/jQuery.data/ html5有个data-*属性,跟这个功能一样. Note: This is a low-level method; a more convenient .data() is also available. The jQuery.data() method allows us to attach data of any type to DOM elements in a way that is
var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/, rmultiDash = /([A-Z])/g; function internalData( elem, name, data, pvt /* Internal Use Only */ ){ //如果elem元素不能附加值,退出 if ( !jQuery.acceptData( elem ) ) { return; } // ## form core.js // Unique for each copy
Where is jQuery.data() stored? Where does jQuery store the values of the data() that it sets to DOM objects? Is there some kind of variable like jQuery.dataDb or something, maybe even something private? Is there any way to gain access to this object?
jQuery.data() 的作用是为普通对象或 DOM Element 附加(及获取)数据. 下面将分三个部分分析其实现方式: 1. 用name和value为对象附加数据:即传入三个参数,第一个参数为需要附加数据的对象,第二个参数为数据的名称,第三个参数为数据的值.当然,只是获取值的话,也可以不传入第三个参数. 2. 用另一个对象为对象附加数据:即传入两个参数,第一个参数为需要附加的数据对象(我们称之为“obj”),第二个参数也是一个对象(我们称之为“another”):“an
