Created
March 28, 2020 22:16
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1 << 2 | |
4 << 1 // bitwise left shift operator | |
// d - 4 | |
// b - 100 | |
// >> n | |
// << n => 2 ^ n | |
5 << 1 // 10 => 5 * (2 ^ n) | |
5 << 2 // 20 => 5 * (2 ^ n) | |
8 >> 2 // 2 | |
// 1000 >> 10 | |
x << n // x * (2 ^ n) | |
// 000000001 | |
// 000000100 << 2 | |
// 001000000 << n | |
// config = { dark: true, privacy: true, loggedIn: true, bookmarked: true, archived: false }; | |
// config.dark = true; | |
// dplba | |
// 11110 => 30 | |
// const d_mask = 10000; // dark | |
// const p_mask = 01000; // privacy | |
// const l_mask = 00100; // loggedIn | |
// Setting to true | |
// ----- | |
// 11110 | |
// | | |
// 10000 | |
// ----- | |
// 11110 | |
// Toggle | |
// ------ | |
// 11110 | |
// ^ | |
// 10000 | |
// ----- | |
// 01110 | |
// _________________ | |
// 01110 | |
// | | |
// 10000 | |
// ----- | |
// 01110 | |
// Setting to false | |
// ----- | |
// 11110 | |
// & | |
// 01111 (~ (10000)) | |
// ----- | |
// 01110 => 14 | |
// bitwise operators | |
// AND, OR, XOR | |
// &, |, ^ | |
// 1 & 0 => 0 | |
// 1 | 0 => 1 | |
// 1 ^ 1 => 0 | |
// 0 ^ 1 => 1 | |
// 1 ^ 0 => 1 | |
// 0 ^ 0 => 0 | |
parseInt(01110001, 2); | |
parseInt('01110001', 2); | |
x.toString(2); | |
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