如何格式化类似Stack Overflow信誉格式的数字 [英] How to format numbers similar to Stack Overflow reputation format

问题描述

我想将数字转换为字符串表示形式，其格式类似于Stack Overflow信誉显示。

I want to convert a number into a string representation with a format similar to Stack Overflow reputation display.

例如

• 999 =='999'


• 1000 =='1,000'


• 9999 =='9,999 '


• 10000 =='10k'


• 10100 == '10 .1k'

• 999 == '999'
• 1000 == '1,000'
• 9999 == '9,999'
• 10000 == '10k'
• 10100 == '10.1k'

推荐答案

另一种产生所需输出的方法：

Another approach that produces exactly the desired output:

function getRepString (rep) {
  rep = rep+''; // coerce to string
  if (rep < 1000) {
    return rep; // return the same number
  }
  if (rep < 10000) { // place a comma between
    return rep.charAt(0) + ',' + rep.substring(1);
  }
  // divide and format
  return (rep/1000).toFixed(rep % 1000 != 0)+'k';
}

检查输出结果这里。

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