ds-algo-study/DS-n-Algos/Dynamic-Programming/dynamic-time-warping/lib/comparison.js

Just experimenting with publishing a package

var EPSILON = 2.2204460492503130808472633361816E-16;

var nearlyEqual = function ( i, j, epsilon ) {
  var iAbsolute = Math.abs( i );
  var jAbsolute = Math.abs( j );
  var difference = Math.abs( i - j );
  var equal = i === j;
  if ( !equal ) {
    equal = difference < EPSILON;
    if ( !equal ) {
      equal = difference <= Math.max( iAbsolute, jAbsolute ) * epsilon;
    }
  }

  return equal;
};

module.exports = {
  EPSILON: EPSILON,
  nearlyEqual: nearlyEqual
};