js去除数组的重复元素和去除数组中相邻的重复元素
//去除数组的重复元素Array.prototype.distinct = function(){var $ = this;var o1 = {};var o2 = {};var o3 = [];var o;for(var i=0;o = $[i];i++){if(o in o1){if(!(o in o2)) o2[o] = o;delete $[i];}else{o1[o] = o;}}$.length = 0;for(o in o1){$.push(o);}for(o in o2){o3.push(o);}return o3;}var obj = {};var o1 = obj, o2 = obj , o3 = {}; //假设变量o1,o2指向同一对象obj, o3为一新对象;var a = [2,3,3,4,4,4,4,5,6,'a','a','a','b','a','b','c',o1,o2,o3];alert("原数组：" + a);alert("有重复的元素是：" + a.distinct());alert("整理后的数组是：" + a);alert("整理后的长度是:" + a.length)?
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// 去除数组中相邻的重复元素Array.prototype.distinctCloseTo = function() {var $ = this;var o3 = new Array();var t = 0for (var i = 0; i < $.length; i++) {if ($[i] != $[i - 1]) {o3[t] = $[i];t++;}}$.length = 0;for (var j = 0; j < o3.length; j++) {$[j] = o3[j];}return o3;}var obj = {};var o1 = obj, o2 = obj, o3 = {}; // 假设变量o1,o2指向同一对象obj, o3为一新对象;var a = [2, 3, 3, 4, 4, 4, 4, 5, 6, 'a', 'a', 'a', 'b', 'a', 'b', 'c', o1, o2,o3];alert("原数组：" + a);alert("整理后的数组是：" + a.distinctCloseTo());alert("整理后的长度是:" + a.length)?