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August 29, 2015 14:12
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Format number with leading zeros
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| // relatively safe | |
| function formatSafely(num, digits) { | |
| return (Array(digits).join('0') + Math.floor(num)).substr(-digits); | |
| } | |
| // or quick | |
| function formatQuickly(num, digits) { | |
| return (Array(digits).join('0') + num).substr(-digits); | |
| } | |
| // or inline | |
| var formatted = ('00' + 7).substr(-3); |
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