This very simple function does exactly what the title suggests, it allows you to round to any specified accuracy. function roundTo(number, to) { return Math.round(number * to) / to; } alert(roundTo(1532, 100)); // 1500 alert(roundTo(26, 10)); // 30 If you want to get fancy, you could also modify the Number prototype for a more “integrated” [...]

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Let me start off by saying I absolutely love Prototype. When a friend showed me how much it helped with writing cross-browser compatible code, I was an instant fan. Over the years of being a Prototype user I paid close attention to the many posts about why X is a better framework than Y. I [...]

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