JavaScript flags implemented using bitmask for simple and efficient storage.
Version 2.x uses numeric-array-integer to implement the flags, while maintaining backwards compatibility with the version 1.x.
$ yarn add mask-flagsSet, get and clear:
import { MaskFlags } from 'mask-flags';
const maskFlags = new MaskFlags(10);
// default flag false
maskFlags.getPos(0); // false
// set
maskFlags.setPos(0);
maskFlags.getPos(0); // true
// clear
maskFlags.clearPos(0);
maskFlags.getPos(0); // falseSave and load:
import { MaskFlags } from 'mask-flags';
const maskFlags = new MaskFlags(10);
maskFlags.setPos(0);
maskFlags.setPos(5);
// save data
const data = maskFlags.getData(); // 33
// load data
const maskFlags2 = MaskFlags.fromData(data, 10);
maskFlags2.getPos(0); // true
maskFlags2.getPos(5); // true
maskFlags2.getPos(10); // falseDefault length (number of bits) of data is 31.
- numeric-array-integer: More generic library that allows arbitrary number of bits at each position.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent