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Round Numbers to Reader Friendly format
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function abbrNum(number, decPlaces){ | |
//http://stackoverflow.com/questions/2685911/is-there-a-way-to-round-numbers-into-a-reader-friendly-format-e-g-1-1k | |
// 2 decimal places => 100, 3 => 1000, etc | |
decPlaces = Math.pow(10,decPlaces); | |
// Enumerate number abbreviations | |
var abbrev = [ "k", "m", "b", "t" ]; | |
// Go through the array backwards, so we do the largest first | |
for (var i=abbrev.length-1; i>=0; i--) { | |
// Convert array index to "1000", "1000000", etc | |
var size = Math.pow(10,(i+1)*3); | |
// If the number is bigger or equal do the abbreviation | |
if(size <= number) { | |
// Here, we multiply by decPlaces, round, and then divide by decPlaces. | |
// This gives us nice rounding to a particular decimal place. | |
number = Math.round(number*decPlaces/size)/decPlaces; | |
// Handle special case where we round up to the next abbreviation | |
if((number == 1000) && (i < abbrev.length - 1)) { | |
number = 1; | |
i++; | |
} | |
// Add the letter for the abbreviation | |
number += abbrev[i]; | |
// We are done... stop | |
break; | |
} | |
} | |
return number; | |
} |
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