代码:
function strrepeat(str,num){var arr = new Array(num + 1)var ret = arr.join(str)return ret}
测试:
var ret = strrepeat('x',4)console.log(ret)
输出:
xxxx
代码:
function strrepeat(str,num){var arr = new Array(num + 1)var ret = arr.join(str)return ret}
测试:
var ret = strrepeat('x',4)console.log(ret)
输出:
xxxx