Bob Yexley ryexley

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.

How to use this thing...

var MyNewViewModel = ViewModel.extend({
    subscriptions: {},
    publications: {},
    defaults: {
        // ko.observable
        foo: 1,
 // ko.ovservableArrray

The problem

When I list my npm packages with npm ls -g (or without the -g option for a local node_modules directory) I see all installed packages and their dependencies. Like so:

$ npm ls -g
├─┬ [email protected]
│ ├── [email protected]
│ ├─┬ [email protected]
│ │ └── [email protected]

#Node - File Paths

##File Paths Node has a path module which can be used to manipulate paths.

###Normalizing Paths Paths can be stored in different ways and it is neccessary to ensure that the path is standardized.

var path = require('path');
path.normalize('/foo/bar//baz/asdf/quux/..');

Debugging & Profiling Node.js - Moved! Click here to be redirected to the new location.

	/* bling.js */
	window.$ = document.querySelector.bind(document);
	window.$$ = document.querySelectorAll.bind(document);
	Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); };
	NodeList.prototype.__proto__ = Array.prototype;
	NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); };

	define(
	['underscore'],
	function (_) {
	// Outputs "true"
	console.log(_.deepClone !== undefined);
	}
	);

	[user]
	name = Brad Wilson
	email = [email protected]
	[alias]
	a = add -A
	abort = rebase --abort
	amend = commit --amend -C HEAD
	bl = blame -w -M -C
	br = branch
	cat = cat-file -t

	var express = require('express'),
	request = require('request'),
	app = express.createServer(),
	PORT = 8010;

	app.configure(function() {
	app.use(express.static(__dirname));
	app.use(express.bodyParser());
	app.use(express.errorHandler());
	});

	var server = require('./server');

	server.listen(3000);