Ustice

Boolean Algebra in a nutshell for JS/TS programmers

There are a lot of strategies that you will hear about in the Javascript community for keeping your conditionals from becoming a tangled mess. This isn't like them. This is someting different. MATH! Boolean Algebra to be exact. I use it all the time to simplify complex conditionals. There are two things that you need to know: de Morgan's Theorem, and Karnaugh (pronounced CAR-no) Maps. (Don't worry, there is no test)

de Morgan's Theorem

De Morgan's Theorem is great distributing nots (!), and for when you want to convert an && to an ||, or back. This is it:

 !(A && B) = !A || !B

laerciobernardo

var str = '0x41FC6733';

function parseFloat(str) {
  var float = 0, sign, order, mantiss,exp,
      int = 0, multi = 1;
  if (/^0x/.exec(str)) {
    int = parseInt(str,16);
  }else{
    for (var i = str.length -1; i >=0; i -= 1) {
      if (str.charCodeAt(i)>255) {

voluntas

WebRTC の未来

更新

2022-03-18

作者

@voluntas

バージョン

2022.1

URL

http://voluntas.github.io/

jimmywarting

This is a response to https://gist.github.com/joepie91/bca2fda868c1e8b2c2caf76af7dfcad3?permalink_comment_id=4767875#gistcomment-4767875

if you are so sure about using 'import' from common js then send some code samples - maybe it will help someone else.

Sure @cybafelo, i can give you 3 example (from easy to more adv)

i'm going to create a basic hello world example that uses express (cjs) and node-fetch (esm-only)

here is what my package.json looks like:

WebReflection

Update

If you're OK in having a node-esm executable, please consider this solution.

#!/usr/bin/env sh
# the /usr/local/bin/node-esm executable
input_file=$1
shift
exec node --input-type=module - $@ <$input_file

ericoporto

Linux: Compile C++ to WebAssembly and JavaScript using Emscripten and CMake

Download and Install Emscripten

• My preferred installation location is /home/user
• Get the latest sdk: git clone https://github.com/emscripten-core/emsdk.git
• Enter the cloned directory: cd emsdk
• Install the lastest sdk tools: ./emsdk install latest
• Activate the latest sdk tools: ./emsdk activate latest
• Activate path variables: source ./emsdk_env.sh
• Configure emsdk in your bash profile by running: echo 'source "/home/user/emsdk/emsdk_env.sh"' >> $HOME/.bash_profile

varqox

How to record multiple applications and microphone into one audio file on Linux

Step 0. Terminology

Sinks are for output, sources are for input. To stream source to sink a loopback must be created. More shall you find there.

Step 1. Create output sink that will be recorded

Our output sink will be named recording.

pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording

NULLx76

# Generate ed25519 privkey
openssl genpkey -algorithm ed25519 -out privkey.pem
# export its pubkey
openssl pkey -in privkey.pem -pubout -out pubkey.pem

# Generate RSA privkey
openssl genrsa -des3 -out private.pem 2048
# export its pubkey
openssl rsa -in private.pem -outform PEM -pubout -out public.pem

domenic

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

joshua-gould

const fs = require('fs');
const path = require('path');
const nodeFetch = require('node-fetch');
const Request = nodeFetch.Request;
const Request = nodeFetch.Response;

  fetch = function (url, options) {
    const request = new Request(url, options);
    if (request.url.substring(0, 5) === 'file:') {
      return new Promise((resolve, reject) => {