hlotvonen

# Goal: substitute each letter in the word "while" with the corresponding alternate.

# Option 0 — does not work, error "many-to-many substitution not available"

lookup whileAttrCalt-0 useExtension {
  ignore sub @AllLetters w' h i l e;
  ignore sub w' h i l e @AllLetters;
  sub w' h' i' l' e' by w.alt2 h.alt2 i.alt2 l.alt2 e.alt2;
} whileAttrCalt-0;

jjgrainger

var Vector = function(x, y) {
  this.x = x || 0;
  this.y = y || 0;
};

// return the angle of the vector in radians
Vector.prototype.getDirection = function() {
	return Math.atan2(this.y, this.x);
};