Created
September 25, 2018 10:33
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format a number with thousand separators
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| Number.prototype.withThousandSep = function() { | |
| return (this + '') | |
| .split('') | |
| .reverse() | |
| .reduce(function(carry, d, index) { | |
| if (index > 0 && index % 3 === 0) { | |
| carry.push('.'); | |
| } | |
| carry.push(d); | |
| return carry; | |
| }, []) | |
| .reverse() | |
| .join(''); | |
| }; |
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