first number
second number
absolute difference
var d = absoluteDifference( 2.0, 5.0 );
// returns 3.0
var d = absoluteDifference( -1.0, 3.14 );
// returns ~4.14
var d = absoluteDifference( 10.1, -2.05 );
// returns ~12.15
var d = absoluteDifference( -0.0, 0.0 );
// returns +0.0
var d = absoluteDifference( NaN, 5.0 );
// returns NaN
var d = absoluteDifference( Infinity, -Infinity );
// returns Infinity
var d = absoluteDifference( Infinity, Infinity );
// returns NaN
Computes the absolute difference.