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Linux

1. Get your local IP address

$ ip route
default via IP1 dev wlan0 proto dhcp src IP2 metric 600 
IP3/24 dev wlan0 proto kernel scope link src IP2 metric 600

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#!/bin/bash

# pass name via $1

ssh-keygen -t rsa -b 4096 -f ~/.ssh/$1

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--- program structure ---
// a Jack program is a collection of files, each should represent a class like the one below

class       = "class" className '{' classVarDec* fnDec* '}' ;
classVarDec = ("static" | "field") type varName (',' varName)* ';' ;
fnDec       = ("constructor" | "function" | "method") ("void" | type) fnName '(' paramList ')' fnBody ;
paramList   = ( (type varName) (',' type varName)* )? ;
fnBody      = '{' varDec* statements '}' ;
varDec      = "var" type varName (',' type varName)* ';' ;
type        = primitive | className ;

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// Cargo.toml dependencies:
// hex = "0.4.3"
// ethabi = "16.0.0"


use ethabi::*;
use ethabi::ParamType::*;
use ethabi::StateMutability::*;

fn main() {

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struct In {
    a: bool,
    b: bool,
}

#[derive(Debug, PartialEq)]
struct Out {
    out: bool,
}

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const assert = require('assert')

function test(title, fn) {
  try {
    fn()
    console.log(`✅ '${title}' test passed`)
  } catch (error) {
    console.error(`❌ '${title}' test failed`)
    throw error
  }

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const getChunk = (arr, from, size) => {
  const clampedFrom = (from + size) > arr.length
    // Trying to get chunk bigger than end of array.
    // Here we reduce `from` so that the chunk size is always preserved.
    ? arr.length - size
    : from

  return arr.slice(clampedFrom, from + size)
}

evaporei

AssemblyScript Migration Guide

Up until now, subgraphs have been using one of the first versions of AssemblyScript (v0.6). Finally we've added support for the newest one available (v0.19.10)! 🎉

That will enable subgraph developers to use newer features of the AS language and standard library.

This guide is applicable for anyone using graph-cli/graph-ts below version 0.22.0. If you're already at a higher than (or equal) version to that, you've already been using version 0.19.10 of AssemblyScript 🙂

Note: As of 0.24.0, graph-node can support both versions, depending on the apiVersion specified in the subgraph manifest.

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document.querySelectorAll('ul.mn-invitation-list button.artdeco-button--secondary').forEach(btn => btn.click())

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console.log('flatten list:', [1, 2, 3].flatMap(x => [x * 2])) // [2, 4, 6]