Adding thousand separators


Often, games and applications may display numbers. Sometimes, large numbers. In some cases, numbers with so many digits that you aren't even sure about most suitable notation.

And that's where use of thousand separators is handy. Since delimiter symbols (normally commas) appear in fewer quantity than digits, they are easier to count, and user can tell the order of magnitude easier.

This post covers detail of doing that, both in algorithm and code.

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