var arr1 = [1,2,3,4,5,6];//待操作數(shù)組var j = 2;//待刪除元素var noRepeat = function(arr1,arr2){return arr1.flter(function(e){return arr2.indexOf(e) == -1;})};var arr2 = [];arr2.push(j);//保證待刪除數(shù)為數(shù)組，方便使用過濾器console.log(noReapeat(arr1,arr2));//即得到剔除后的數(shù)組

//先從數(shù)組中找到待刪元素下標Array.prototype.indexOf = function(val){for(var i=0;i<this.length;i++){(this[i] == val)&&(return i;);return -1;}}//使用splice進行刪除(注意：splice返回的是刪除的數(shù)組，我們需要的是刪除后的原數(shù)組)Array.prototype.remove = function(val){var index = this.indexOf(val);//調(diào)用上面函數(shù)獲取下標if(index != -1){this.splice(index,1);//刪除元素return this;//已經(jīng)剔除的原數(shù)組}} //調(diào)用var arr = [1,2,3,4,5];console.log(arr.remove(3));