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unbind(type,[data|fn]])
概述
bind()的反向操作，从每一个匹配的元素中删除绑定的事件。
jQuery 3.0中已弃用此方法，请用 off()代替。
如果没有参数，则删除所有绑定的事件。
你可以将你用bind()注册的自定义事件取消绑定。
如果提供了事件类型作为参数，则只删除该类型的绑定事件。
如果把在绑定时传递的处理函数作为第二个参数，则只有这个特定的事件处理函数会被删除。
参数
type,[fn]String,FunctionV1.0
type:删除元素的一个或多个事件,由空格分隔多个事件值。
fn:要从每个匹配元素的事件中反绑定的事件处理函数
type,falseString,boolV1.4.3
type:删除元素的一个或多个事件,由空格分隔多个事件值
false:设置为false会使默认的动作失效。
eventObjStringV1.0
事件对象。这个 eventObj 参数来自事件绑定函数
示例
描述:
把所有段落的所有事件取消绑定
jQuery 代码:
$("p").unbind()描述:
将段落的click事件取消绑定
jQuery 代码:
$("p").unbind( "click" )描述:
删除特定函数的绑定，将函数作为第二个参数传入
jQuery 代码:
var foo = function () {
// 处理某个事件的代码
};
$("p").bind("click", foo); // ... 当点击段落的时候会触发 foo
$("p").unbind("click", foo); // ... 再也不会被触发 foo