Javascript中提供了多种基本的数组遍历方法

some : stop looping the first time the iterator returns true or something truthy

demo

every: stops looping the first time the iterator returns false or something falsey

demo

filter:creates a new array including elements where the filter function returns true and omiting the ones where it returns false

demo

map:creates a new array from the values returned by the iterator function

demo

forEach:

demo

for:

demo

Jquery中提供了多种遍历方法

$each ： jquery object , array , dom array

demo

$map

demo

$domEach

demo