数组concat以及join的理解
2017-10-07 本文已影响0人
乍暖还寒2002
//合并数组，谁在左谁在前面
var a = [1,2,3];
var b = [4,5,6];
// alert(a.concat(b));
alert(b.concat(a));
var arr = [1,2,3,4,5,6];
alert(arr.join('$'));
//合并数组，谁在左谁在前面
var a = [1,2,3];
var b = [4,5,6];
// alert(a.concat(b));
alert(b.concat(a));
var arr = [1,2,3,4,5,6];
alert(arr.join('$'));
