JS Regex: Adds thousands separator to a number.

numberWithThousands.js

// Adds the thousands separator
function numberWithThousands(x) {
  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ".");
}

Thanks but it has failed to work on my browser...
failed to add the thousand seperators
Google Chrome is up to date
Version 74.0.3729.169 (Official Build) (64-bit)

Then pass toLocaleString('en-GB')

i think it might be a reactjs problem for not changing the values. Thank you for the help

formatter={(value) => ` ${value}`.replace(/\B(?=(\d{3})+(?!\d))/g, ',')} parser={(value) => value.replace(/\$\s?|(,*)/g, '')}

I'm using this, with the comma works fine but i want to use a dot as a thousand separator and a comma for decimals.
But if i put a dot instead of a comma i get this result 2.0.0.0.0.000 can someone help me?

@OmarNassar01 have a look at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString

formatter={(value) => ` ${value}`.replace(/\B(?=(\d{3})+(?!\d))/g, ',')} parser={(value) => value.replace(/\$\s?|(,*)/g, '')}

I'm using this, with the comma works fine but i want to use a dot as a thousand separator and a comma for decimals. But if i put a dot instead of a comma i get this result 2.0.0.0.0.000 can someone help me?

@OmarNassar01 Hi, did you find solution?