Jarrod Overson jsoverson

Answering the Front-end developer JavaScript interview questions to the best of my ability.

Explain event delegation

Sometimes you need to delegate events to things.

Explain how this works in JavaScript

This references the object or "thing" defined elsewhere. It's like "hey, thing I defined elsewhere, I'm talkin' to you."

Explain how prototypal inheritance works.

Bearded's Hourly Contract

Date: [[Date of Document]] Between [Our Company] and [Your Company]

Summary

We’re not big on formality, but sometimes it’s best to have a few simple things written down so that we’re all on the same page. In this contract you won’t find complicated legal terms or large passages of unreadable text. We have no desire to trick you into signing something that you might later regret. We do want what’s best for the safety of both parties, now and in the future.

stopBefore.js

2min screencast

Examples

stopBefore(document, 'getElementById')
stopBefore('document.getElementById') // the same as the previous
stopBefore(Element.prototype, 'removeChild')

	/*!
	* jQuery JavaScript Library v2.1.1pre
	* http://jquery.com/
	*
	* Includes Sizzle.js
	* http://sizzlejs.com/
	*
	* Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
	* Released under the MIT license
	* http://jquery.org/license

	var ngAppElem = angular.element(document.querySelector('[ng-app]') \|\| document);

	window.$injector = ngAppElem.injector();
	window.inject = $injector.invoke;
	window.$rootScope = ngAppElem.scope();

	// getService('auth') will create a variable `auth` assigned to the service `auth`.
	var getService = serviceName =>
	inject([serviceName, s => window[serviceName] = s]);

	#!/bin/bash

	# Copyright (c) 2021 Soumya Deb <[email protected]>
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:

	# MAC manipulators
	alias random_mac='sudo ifconfig en0 ether `openssl rand -hex 6 \| sed "s/\(..\)/\1:/g; s/.$//"`'
	alias restore_mac='sudo ifconfig en0 ether YOUR_ORIGINAL_MAC_ADDRESS_GOES_HERE'