题解 | #分隔符#
分隔符
https://www.nowcoder.com/practice/e5696992841841a8ab9d026324e4bb77
function _comma(number) {
let flag = 0;
if (number < 0) {
flag = 1
number = -number
}
let a = number.toString().split('').reverse();
let s = new Array();
for (let i = 0; i < a.length; i++) {
if (i % 3 == 0 && i != 0) {
s.push(',')
}
s.push(a[i])
}
if (flag == 1) {
return '-' + s.reverse().join('')
}
return s.reverse().join('')
}
查看42道真题和解析