sindresorhus

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

1. Use ESM yourself. (preferred)
   Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
3. Stay on the existing version of the package until you can move to ESM.

ThePredators

⭐ Setup Mobile Development Environment

⚠️ The following configuration has been tested on Intel, M1 & M2 Ships ⚠️

Pre-requisit :

If you have any issues with macOS, or need anything related to it check this documentation

Install Xcode Command Line tools :

spalladino

Falsehoods that Ethereum programmers believe

I recently stumbled upon Falsehoods programmers believe about time zones, which got a good laugh out of me. It reminded me of other great lists of falsehoods, such as about names or time, and made me look for an equivalent for Ethereum. Having found none, here is my humble contribution to this set.

About Gas

Calling estimateGas will return the gas required by my transaction

Calling estimateGas will return the gas that your transaction would require if it were mined now. The current state of the chain may be very different to the state in which your tx will get mined. So when your tx i

shazron

#!/bin/bash

# Description:
#     Delete all `greenkeeper/*` branches of your remote.
# Instructions:
#     Run the script with the `--help` flag.

ORIGIN=origin
DRY_RUN=0
THIS=`basename "$0"`

scmx

How to use <details> <summary> expandable content on GitHub with Markdown

Firstly, what is <details> <summary>?

The HTML Details Element (<details>) creates a disclosure widget in which information is visible only when the widget is toggled into an "open" state. A summary or label can be provided using the <summary> element. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details.

Example

gabmontes

const { Transaction } = require('bitcore-lib')
const { decrypt } = require('bip38')

const encryptedKey = '<private key beginning with 6>'
const password = '<private key password>'

const privateKey = decrypt(encryptedKey, password).privateKey

// Check UTXO info at https://insight.bitpay.com/api/addr/<origin address>/utxo
const utxo = {

johnloy

Electron apps

• Marp: Markdown presentation ecosystem.

• muryoimpl/slippr: markdown presentation app by Electron

• joe-re/cafe-pitch Markdown-driven presentation tool built on Electron.

Slide deck frameworks supporting Markdown source

vlucas

'use strict';

const crypto = require('crypto');

const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters)
const IV_LENGTH = 16; // For AES, this is always 16

function encrypt(text) {
 let iv = crypto.randomBytes(IV_LENGTH);
 let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv);

ryanwinchester

# Update brew
brew update

# Need postgres
brew install postgresql

# Install elixir
brew install elixir

# Install hex package manager

hrobeers

var bitcore = require("bitcore-lib");
var Buffer = require("buffer").Buffer;

var value = new Buffer.from("test", "utf8");

var hash = bitcore.crypto.Hash.sha256(value);

// Compressed Key (nu skool)
var bn = bitcore.crypto.BN.fromBuffer(hash);
var privateKey = new bitcore.PrivateKey(bn);