Function parseOption

stackgl_modules/index.js:11750–11768

(nest, cons, name)

  //Option parsing helper functions
  function parseOption(nest, cons, name) {
    if(name in options) {
      var opt = options[name]
      var prev = this[name]
      var next
      if(nest ? (isArrayOrTypedArray(opt) && isArrayOrTypedArray(opt[0])) :
                 isArrayOrTypedArray(opt) ) {
        this[name] = next = [ cons(opt[0]), cons(opt[1]), cons(opt[2]) ]
      } else {
        this[name] = next = [ cons(opt), cons(opt), cons(opt) ]
      }
      for(var i=0; i<3; ++i) {
        if(next[i] !== prev[i]) {
          return true
        }
      }
    }
    return false
  }

  var NUMBER  = parseOption.bind(this, false, Number)
  var BOOLEAN = parseOption.bind(this, false, Boolean)