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Add Commas Javascript Global Replace function
function formatNumber(total) {
return total.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1,')
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MarissaJ commented Apr 2, 2020

Adds a comma in the right spaces for text layers used as numbers in Adobe After Effects. Copy code and paste as an expression on a text layer's Source Text property. Great function to apply when using text layers to generate computational math or getting data from a spreadsheet. Of course if you're doing none of these things you can just type a comma :)

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