Opal-Estate-Pro/node_modules/rxjs/_esm2015/util/MapPolyfill.js
2019-09-13 11:27:52 +07:00

44 lines
1.0 KiB
JavaScript
Executable File

export class MapPolyfill {
constructor() {
this.size = 0;
this._values = [];
this._keys = [];
}
get(key) {
const i = this._keys.indexOf(key);
return i === -1 ? undefined : this._values[i];
}
set(key, value) {
const i = this._keys.indexOf(key);
if (i === -1) {
this._keys.push(key);
this._values.push(value);
this.size++;
}
else {
this._values[i] = value;
}
return this;
}
delete(key) {
const i = this._keys.indexOf(key);
if (i === -1) {
return false;
}
this._values.splice(i, 1);
this._keys.splice(i, 1);
this.size--;
return true;
}
clear() {
this._keys.length = 0;
this._values.length = 0;
this.size = 0;
}
forEach(cb, thisArg) {
for (let i = 0; i < this.size; i++) {
cb.call(thisArg, this._values[i], this._keys[i]);
}
}
}
//# sourceMappingURL=MapPolyfill.js.map