all files / mapbox-gl-draw/src/lib/ simple_set.js

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function SimpleSet(items) {
  this._items = (items) ? items.slice() : [];
}
 
SimpleSet.prototype.add = function(item) {
  if (this._items.indexOf(item) !== -1) return;
  this._items.push(item);
  return this;
};
 
SimpleSet.prototype.delete = function(item) {
  var itemIndex = this._items.indexOf(item);
  if (itemIndex === -1) return;
  this._items.splice(itemIndex, 1);
  return this;
};
 
SimpleSet.prototype.has = function(item) {
  return this._items.indexOf(item) !== -1;
};
 
SimpleSet.prototype.values = function() {
  return this._items.slice();
};
 
SimpleSet.prototype.clear = function() {
  this._items = [];
  return this;
};
 
module.exports = SimpleSet;