The bit is a basic unit of information in information theory, computing.
This package includes bit twiddling hacks by Sean Eron Anderson and many others.
Stability: Experimental.
This is browserified, minified version of extra-bit.
It is exported as global variable bit.
CDN: unpkg, jsDelivr.
const bit = require("extra-bit");
// import * as bit from "extra-bit";
// import * as bit from "https://unpkg.com/extra-bit@1.0.50/index.mjs"; (deno)
bit.count(7);
// 3 (111 ⇒ 3)
bit.parity(8, 2);
// 2 (10,00 ⇒ 10)
bit.swap(6, 1, 0);
// 5 (110 ⇒ 101)
bit.reverse(0xFFFF0000);
// 65535 (0x0000FFFF)
bit.signExtend(15, 4);
// -1Index
| Method | Action |
|---|---|
| get | Gets a bit. |
| set | Sets a bit. |
| toggle | Toggles a bit. |
| swap | Swaps bit sequences. |
| scan | Finds index of first set bit from LSB. |
| count | Counts bits set. |
| parity | Finds n-bit parity. |
| rotate | Rotates bits. |
| reverse | Reverses all bits. |
| merge | Merges bits as per mask. |
| interleave | Interleaves bits of two int16s. |
| signExtend | Sign extends variable bit-width integer. |
