Regular Expressions 101

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Regular Expression
Created·2020-02-27 07:18
Flavor·PCRE (Legacy)

/
\B(?=(\d{3})+\b)
/
gm
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Description

"321123321.32132132".replace(/\B(?=(\d{3})+\b)/g,",");
=>
"321,123,321.32,132,132"
Submitted by anonymous