JSLite - Filtering

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filter

Filter out the set of elements that match the specified expression.
filter(selector)
filter(function(index){ ... }) Filter out elements that match non- specified expressions gather.

$("div").filter("#box") //⇒ self 在所有的div对象中选择器为 #box 的过滤出来。

$("#select option").filter(function(idx){
    console.log(this.selected)
    return this.selected
})
//上面这种方法跟 not(function(index){ ... })  是一样的

not

not(selector) ⇒ collection
not(collection) ⇒ collection
not(function(index){ ... }) ⇒ collection
Filters out the collection of elements that match non specified expressions. Its function is exactly the opposite of filter, returning.

$("#select option").not(function(idx){
    console.log(this.selected)
    return this.selected
})
//⇒ [哈哈3]
$("input").not("#input") //⇒ 返回除去 匹配到的#input

$('input').not(function(){
    console.log(this.type)
    return this.type=="text"
})