| // A simple way to store binary data inside a js/ts file with a density of 1 char per byte. | |
| // Even though each char takes 2 bytes. | |
| const b256enc = (buff: Uint8Array) => [...buff].map(i => String.fromCodePoint(i + 192)).join(''); | |
| const b256dec = (str: string) => str.split('').map(c => c.charCodeAt(0) - 192); | |
| // Example 1: Basic usage | |
| const data = new Uint8Array([ 127, 127, 168, 226, 120, 62, 44, 146, 82, 213, 0, 30 ]); | |
| const encoded = b256enc(data); | |
| console.log(encoded); // 'ĿĿŨƢĸþìŒĒƕÀÞ' |
| export function packUUID(uuid: string): string { | |
| let v; | |
| let bytes = ''; | |
| // Parse ########-....-....-....-............ | |
| bytes += String.fromCharCode((v = parseInt(uuid.slice(0, 8), 16)) >>> 24); | |
| bytes += String.fromCharCode((v >>> 16) & 0xff); | |
| bytes += String.fromCharCode((v >>> 8) & 0xff); | |
| bytes += String.fromCharCode(v & 0xff); |
| <div class="loader"></div> | |
| <style> | |
| .loader { | |
| --size: 5rem; | |
| --weight: .5rem; | |
| --background: rgba(127, 127, 127, .1); | |
| --color: rgba(127, 127, 127, .9); | |
| --duration: 1s; | |
| position: fixed; | |
| top: calc(50% - var(--size) / 2); |
| /** | |
| * Unsubscribe from all "orgName" repositories in https://github.com/watching | |
| * | |
| * https://github.com/isaacs/github/issues/641 | |
| * @param string orgName | |
| */ | |
| function unwatchOrgRepos(orgName) { | |
| if (!window.location.href.startsWith('https://github.com/watching')) { | |
| throw new Error('This script is intended to be run in "https://github.com/watching"') |
| /** | |
| * Locale strings | |
| * You can get it from https://github.com/iamkun/dayjs/blob/dev/src/locale/ | |
| */ | |
| const loc = { | |
| future: 'in %s', | |
| past: '%s ago', | |
| s: 'a few seconds', | |
| m: 'a minute', |
| [user] | |
| name = Pavan Kumar Sunkara | |
| email = pavan.sss1991@gmail.com | |
| username = pksunkara | |
| [core] | |
| editor = vim | |
| whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol | |
| excludesfile = ~/.gitignore | |
| [sendemail] | |
| smtpencryption = tls |
| # Put this in your ~/.gitconfig or ~/.config/git/config | |
| # Windows users: "~" is your profile's home directory, e.g. C:\Users\<YourName> | |
| [user] | |
| name = Your Full Name | |
| email = your@email.tld | |
| [color] | |
| # Enable colors in color-supporting terminals | |
| ui = auto | |
| [alias] | |
| # List available aliases |
| // IsValidEan13 return true if given ean13 number is valid | |
| func IsValidEan13(code string) bool { | |
| if len(code) != 13 { | |
| return false | |
| } | |
| oddSum := 0 | |
| evenSum := 0 | |
| for i, n := range code[:12] { | |
| digit := int(n - '0') |
A quick overview of the node.js streams interface with basic examples.
This is based on @brycebaril's presentation, Node.js Streams2 Demystified
Streams are a first-class construct in Node.js for handling data.
Think of them as as lazy evaluation applied to data.
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Document</title> | |
| <style media="screen"> | |
| html,body{ | |
| font-family: monospace; |
