var arr1 = [ "one", "two", "three" , "four", "five" ];
$.each(arr1, function(){
alert(this);
});
Output: one two three four five
var arr2 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
$.each(arr2, function(i, item){ The name of the parameter can be defined by yourself, and the each method will be based on the first parameter (arr2) format to determine the correctness of the callback function method body syntax
alert(item[0]);
});
Output: 1 4 7
var obj = { one:1, two:2, three:3, four:4, five:5 };
$.each(obj, function(key, val) {
alert(obj[key]);
});
Output: 1 2 3 4 5
$.each( $("input:hidden"), function(){
alert(this.name);
});
$.each($("input:hidden"), function(){
alert(this.value);
});
Bounce traversal
$(document).ready(
function test()
{ var index=0;
var arr1 = [[1, 4, 3 ], [4, 6, 6], [7, 20, 9]]
$.each(arr1, function(i,item){
if(i==1)
{
alert("Click to continue the next traversal");
return ; //return false ; then jump out of the traversal
}
alert('index' i '_' item[0]);
});
})