syed-ahmad

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	${#VARNAME}
Get a single character	${VARNAME[index]}

syed-ahmad

[alias]
    s = status
    co = checkout
    cob = checkout -b
    del = branch -D    
    br = branch --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(contents:subject) %(color:green)(%(committerdate:relative)) [%(authorname)]' --sort=-committerdate
    save = !git add -A && git commit -m 'chore: savepoint'
    undo = reset HEAD~1 --mixed
    res = !git reset --hard
    done = !git push origin HEAD

syed-ahmad

function generateBreadcrumbs(paths) {
  var breadcrumbs = [];
  breadcrumbs.push({
    name: 'Home',
    href: '/',
  });

  paths.forEach((path, index) => {
    let segments = [];
    for(i = 0; i <= index; i++) {

syed-ahmad

const https = require('https');

https.get('https://coderbyte.com/api/challenges/json/json-cleaning', (resp) => {
  
  let raw = '';
  const expected = {"name":{"first":"Daniel","last":"Smith"},"age":45, "items_removed": 1};
  // parse json data here...
  let index = 1;
  resp.on('data' , (chunk) => {
    raw += chunk;

syed-ahmad

// Determine the possible characters that could result from a certain morse code word with some potentially unknown signals (?).
// ? is either dit (.) or dah (-)
// This is incomplete, sorry.

const possibilities = signal => {
  const signals = signal.split('');
  console.log(`🚀`, signals);
  
  const hasUnknownSignal = signals.includes('?');
  

syed-ahmad

import React from 'react';
import { rest } from 'msw';
import userEvent from '@testing-library/user-event';
import { render, screen } from '../testUtils';
import ItemsPage from '../pages/Items';
import server from '../mocks/server';

describe('given Items Page', () => {
  test('fetches items from API on page load', async () => {
		render(<ItemsPage />);

syed-ahmad

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;

namespace RegExTest
{
    static class MyExtensions
    {
        public static void PrintMatch(this Regex re, string input)
        {

syed-ahmad

/**
 * Gets all event-handlers from a DOM element.
 * Events with namespace are allowed.
 *
 * @param  {Element} node: DOM element
 * @param  {String} eventns: (optional) name of the event/namespace
 * @return {Object}
 */
function getEventHandlers(element, eventns) {
  const $ = window.jQuery;

syed-ahmad

// Slightly improved version with destructuring working as expected
export default async function tryCatch<T>(
  promise: Promise<T>
): Promise<{ error?: Error; data?: T }> {
  try {
    return { data: await promise };
  } catch (error) {
    return { error };
  }
}

syed-ahmad

/*
  If you have a horizontal (or vertical) scroll container and want to set the scroll to center a specific
  element in the container you can use the following super simple technique. 
  I'm going to show you how it was derived, because it's important to know why, not just how. 
*/

/* 
  Setup: 
  [HTML]
  <div class="outer">