如何计算for循环中的字长

Question

我有这样的循环数据：

for (var i = 0; i < 11;i++){
console.log(i); 
}

我的问题如何获得字长，所以我想要得到这样的结果：

0 <-- this length is 1
1 <-- this length is 1
2 <-- this length is 1
3 <-- this length is 1
4 <-- this length is 1
5 <-- this length is 1
6 <-- this length is 1
7 <-- this length is 1
8 <-- this length is 1
9 <-- this length is 1
10 <-- this length is 2

Answer 1

您可以使用toString()函数将其解析为字符串，然后获取string的{​​{3}}

＆＃13;

＆＃13;

for (var i = 0; i < 11;i++){
  console.log(i + ' <- this length is ' + i.toString().length); 
}

＆＃13;

＆＃13;

＆＃13;

Answer 2

这应该可以解决问题：

for(var i = 0; i < 11; i++){
    console.log(i + " <-- this length is " + i.toString().length);
}

Answer 3

for (var i = 0; i < 11;i++){
    console.log(i + ' <- this length is ' + (i+'').length);
}