How to use replace() as adding '.' between the numbers?

Question

Using Javascript, if my number is 5899, I want to insert a decimal point between the numbers to get the result of 58.99. I know (num/100).toFixed(2) would work, but just wondering if there is a way for using replace.

CertainPerformance · Accepted Answer · 2022-01-20 03:23:33Z

7

A regular expression can look ahead for 2 digits followed by the end of the string...

console.log(
  String(5899).replace(
    /(?=\d{2}$)/,
    '.'
  )
);

but .toFixed makes a lot more intuitive sense, and so should probably be preferred.

answered Jan 20, 2022 at 3:23

CertainPerformance

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