JavaScript合并两个数组并去除重复项
Array.prototype.unique = function() { var a = this.concat(); for(var i=0; i for(var j=i+1; j if(a[i] === a[j]) a.splice(j, 1); } } return a; };
//Demo
var array1 = ["a","b"]; var array2 = ["b", "c"]; var array3 = array1.concat(array2).unique();
输出结果:
// [“a”,”b”,”c”]