Implement list comprehension

list_comprehension.js

/* 
 * Example:
 * Find any integer x, y, z that match the following conditions
 *   1. 0 < x < y < z < 10
 *   2. x * x + y * y = z * z
 * In Python:
 *  [(x,y,z) for x in range(1,10) for y in range(1,10) for z in range(1,10) if x < y and y < z and x * x + y * y == z * z]
 *  >>> [(3, 4, 5)]
 * In Javascript with Ramda:
 */ 
var R = require('ramda');
R.pipe(
  R.sequence(R.of), 
  R.filter(R.apply(function(x, y, z) { 
    return x < y && y < z && (x * x + y * y == z * z); 
  }))
)([R.range(1, 10), R.range(1, 10), R.range(1, 10)])
// [[3, 4, 5]]