If you have any issues with macOS, or need anything related to it check this documentation
Install Xcode Command Line tools :
If you have any issues with macOS, or need anything related to it check this documentation
Install Xcode Command Line tools :
var crypto = require('crypto'); | |
// larger numbers mean better security, less | |
var config = { | |
// size of the generated hash | |
hashBytes: 32, | |
// larger salt means hashed passwords are more resistant to rainbow table, but | |
// you get diminishing returns pretty fast | |
saltBytes: 16, | |
// more iterations means an attacker has to take longer to brute force an |
A description of known problems in Satoshi Nakamoto's paper, "Bitcoin: A Peer-to-Peer Electronic Cash System", as well as notes on terminology changes and how Bitcoin's implementation differs from that described in the paper.
The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power.
#!/usr/bin/env node | |
// Reads JSON from stdin and writes equivalent | |
// nicely-formatted JSON to stdout. | |
var stdin = process.stdin, | |
stdout = process.stdout, | |
inputChunks = []; | |
stdin.resume(); |
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.
'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); |
As configured in my dotfiles.
start new:
tmux
start new with session name:
The package that linked you here is now pure ESM. It cannot be require()
'd from CommonJS.
This means you have the following choices:
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.await import(…)
from CommonJS instead of require(…)
.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.
estimateGas
will return the gas required by my transactionCalling 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