for遍历
var arr = [1, 2, 3, 4]; for (var i = 0; i < arr.length; i++) { console.log(arr[i]); }
forEach遍历
var arr = [1, 2, 3, 4]; arr.forEach(function(val, index) { console.log(val, index); });
for-in遍历
var arr = [1, 2, 3, 4]; for (var i in arr) { console.log(arr[i]); }
$.each遍历(要引入jQuery)
var arr = [1, 2, 3, 4]; $.each(arr, function (index, val) { document.write(“索入”+index+":"+val+’\n’); });
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