Get the state (0 or 1) of the bit at the given index in a given value.
| Index | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 128 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 'a' | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| '1' | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 |
If an invalid index or value is given, then 0 is returned.
Will not accept numbers over 255 or below 0.
Will accept a String of 1 or more characters, but only uses the first byte.
To add as a dependency to a Node.js project:
npm i ramped.bit --save
bit = require('ramped.bit')
highest_bit = bit(1)
lowest_bit = bit(8)
highest_bit(128)
// 1
lowest_bit(128)
// 0
lowest_bit(1)
// 1