Clamp numbers to ranges taking into account the epsilon of the numbers at the end of the ranges. A range is string in Interval Notation such as "[2..4)" which means "between 2 (inclusive) and 4 (exclusive)."
npm install float-clamp
var floatClamp = require('float-clamp');
var randomClamper = floatClamp.makeDoubleClamper('[0..1)'); //- Now randomClamper is a function that will clamp numbers to between 0 (inclusive) //- and 1 (exclusive) //- This is exactly the same range as values returned from Math.random() randomClamper(-0.01) //=> 0 randomClamper(0) //=> 0 randomClamper(0.01) //=> 0.01 randomClamper(1) //=> 0.9999999999999999
See below for clamp generators for other precision floating point numbers (and even an integer)
Shown above, generates clampers that calculates epsilons for double-precision floating point numbers. Every
Float64Array typed arrays.
Generates clampers that calculates epsilons for single-precision floating point numbers. In other words,
Float32Array typed arrays.
Integer clamping is easy, right?
Not so fast! All
Integers greater than 2^53 can not be represented exactly. This library takes that into account when used with very large exclsuive end-points and will clamp to the nearest valid integer to that exclusive end-point.
- v1.0.0 Initial functionality
License - MIT
Copyright (C) 2013 Jon-Carlos Rivera
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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