comb
comb.number Public
Defined base/number.js

Utilities for numbers

The comb.number namespace can be used to decorate numbers with additional chainable functionality

roundCeil Static Function Public

Defined base/number.js

Rounds a number to the specified places, rounding up.

Example 
comb.number.roundCeil(10.000001, 2); //10.01
comb.number.roundCeil(10.000002, 5); //10.00001
comb.number.roundCeil(10.0003, 3); //10.001
comb.number.roundCeil(10.0004, 2); //10.01
comb.number.roundCeil(10.0005, 3); //10.001
comb.number.roundCeil(10.0002, 2); //10.01
Arguments Source 
function (num,precision){
   return Math.ceil(num * Math.pow(10, precision))/Math.pow(10, precision);
}

roundHalfDown Static Function Public

Defined base/number.js

Rounds a number half down to the specified places.

Example 
comb.number.roundHalfDown(0.225, 2);     //0.22
comb.number.roundHalfDown(10.384, 2);    //10.38
comb.number.roundHalfDown(10.386, 2);    //10.38
comb.number.roundHalfDown(10.3869, 3);   //10.386
comb.number.roundHalfDown(10.3861, 3);   //10.386
comb.number.roundHalfDown(10.269019, 5); //10.26901
Arguments Source 
function (num,precision){
   var multiplier = pow(10, precision);
   return Math.floor(num * multiplier) / multiplier;
}

roundHalfUp Static Function Public

Defined base/number.js

Rounds a number half up to the specified places.

Example 
comb.number.roundHalfUp(0.225, 2);     //0.23
comb.number.roundHalfUp(10.384, 2);    //10.38
comb.number.roundHalfUp(10.386, 2);    //10.39
comb.number.roundHalfUp(10.3869, 3);   //10.387
comb.number.roundHalfUp(10.3861, 3);   //10.386
comb.number.roundHalfUp(10.269019, 5); //10.26902
comb.number.roundHalfUp(-2.384, 2);    //-2.38
comb.number.roundHalfUp(-2.385, 2);    //-2.38
comb.number.roundHalfUp(-2.386, 2);    //-2.39
Arguments Source 
function (num,precision){
   var multiplier = pow(10, precision),
       numMod = parseInt((num * multiplier), 10),
       lastDigit = parseInt(num * (multiplier * 10), 10) - (numMod * 10);
   if (lastDigit < -5) {
       numMod -= 1;
   } else if (lastDigit >= 5) {
       numMod += 1;
   }
   return numMod / multiplier;
}

License

MIT https://github.com/C2FO/comb/raw/master/LICENSE

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