Urdu uses the original digit writing direction. Numbers are written little-endian in Arabic, and when Latin adopted the Arabic digits the direction of the digits was kept which made the numbers big-endian in Latin.

The users of Latin scripts are used to big-endian numbers and think this is the natural order. But historically numbers are actually little-endian with the writing direction changed around them in Latin scripts.

Now I want a snippet that flips numbers to little-endian and uses direction markers to show them the "right" way visually. This would only be a little confusing :-)

Update: My LLM got it right on the first try:

    function reverseDigitsAndCorrectDirection(inputString) {
        const regex = /-?\d+(\.\d+)?/g;
        const reverseString = str => str.split('').reverse().join('');
        return inputString.replace(regex, match => 
        '\u202E' + reverseString(match) + '\u202C');
    }