luhn-generator
Version:
A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm
130 lines • 2.47 kB
JavaScript
// Generated by LiveScript 1.4.0
var max, min, negate, abs, signum, quot, rem, div, mod, recip, pi, tau, exp, sqrt, ln, pow, sin, tan, cos, asin, acos, atan, atan2, truncate, round, ceiling, floor, isItNaN, even, odd, gcd, lcm;
max = curry$(function(x$, y$){
return x$ > y$ ? x$ : y$;
});
min = curry$(function(x$, y$){
return x$ < y$ ? x$ : y$;
});
negate = function(x){
return -x;
};
abs = Math.abs;
signum = function(x){
if (x < 0) {
return -1;
} else if (x > 0) {
return 1;
} else {
return 0;
}
};
quot = curry$(function(x, y){
return ~~(x / y);
});
rem = curry$(function(x$, y$){
return x$ % y$;
});
div = curry$(function(x, y){
return Math.floor(x / y);
});
mod = curry$(function(x$, y$){
var ref$;
return (((x$) % (ref$ = y$) + ref$) % ref$);
});
recip = (function(it){
return 1 / it;
});
pi = Math.PI;
tau = pi * 2;
exp = Math.exp;
sqrt = Math.sqrt;
ln = Math.log;
pow = curry$(function(x$, y$){
return Math.pow(x$, y$);
});
sin = Math.sin;
tan = Math.tan;
cos = Math.cos;
asin = Math.asin;
acos = Math.acos;
atan = Math.atan;
atan2 = curry$(function(x, y){
return Math.atan2(x, y);
});
truncate = function(x){
return ~~x;
};
round = Math.round;
ceiling = Math.ceil;
floor = Math.floor;
isItNaN = function(x){
return x !== x;
};
even = function(x){
return x % 2 === 0;
};
odd = function(x){
return x % 2 !== 0;
};
gcd = curry$(function(x, y){
var z;
x = Math.abs(x);
y = Math.abs(y);
while (y !== 0) {
z = x % y;
x = y;
y = z;
}
return x;
});
lcm = curry$(function(x, y){
return Math.abs(Math.floor(x / gcd(x, y) * y));
});
module.exports = {
max: max,
min: min,
negate: negate,
abs: abs,
signum: signum,
quot: quot,
rem: rem,
div: div,
mod: mod,
recip: recip,
pi: pi,
tau: tau,
exp: exp,
sqrt: sqrt,
ln: ln,
pow: pow,
sin: sin,
tan: tan,
cos: cos,
acos: acos,
asin: asin,
atan: atan,
atan2: atan2,
truncate: truncate,
round: round,
ceiling: ceiling,
floor: floor,
isItNaN: isItNaN,
even: even,
odd: odd,
gcd: gcd,
lcm: lcm
};
function curry$(f, bound){
var context,
_curry = function(args) {
return f.length > 1 ? function(){
var params = args ? args.concat() : [];
context = bound ? context || this : this;
return params.push.apply(params, arguments) <
f.length && arguments.length ?
_curry.call(context, params) : f.apply(context, params);
} : f;
};
return _curry();
}