Nodejs Utililty Methods Array First Predicate

List of utility methods to do Array First Predicate

Description

The list of methods to do Array First Predicate are organized into topic(s).

Method

Array.prototype.first = function (predicate) {
    for (var i = 0; i < this.length; ++i) {
        if (predicate(this[i]))
            return this[i];
};

first(predicate, def)

Array.prototype.first = function (predicate, def) {
  var l = this.length;
  if (!predicate) return l ? this[0] : def == null ? null : def;
  for (var i = 0; i < l; i++){
    if (predicate(this[i], i, this))
      return this[i];
  return def == null ? null : def;
};
...