tahoeRobbo

* Promise vs Observable
  * Promise
    * Single async event that can either complete or fail once.
    * Can be used with async/await keywords.
  * Observable
    * Can emit multiple events async. 
    * Offers a bit more control over the async task, for example cancelling. 
    * Cannot be used with async/await keywords.
  * Think of Observables as a stream of data instead of an async task.
  * Observable is the default used in Angular, but promises are still fine to use. 

tahoeRobbo

Definitely not comprehensive. This is meant to be a basic memory aid with links to get more details. I'll add to it over time.

Install

$ npm install mongoose --save

Connect

const mongoose = require('mongoose');

tahoeRobbo

Frontend Development

Attention: the list was moved to

https://github.com/dypsilon/frontend-dev-bookmarks

This page is not maintained anymore, please update your bookmarks.

---

tahoeRobbo

process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

tahoeRobbo

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

1. Raw Attribute Strings

   <div my-directive="some string" another-param="another string"></div>

tahoeRobbo

var app = angular.module('app', ['firebase']);

app.controller('ctrl', function($scope) {
  var ref = new Firebase('https://fbutil.firebaseio.com/paginate');
  $scope.scrollItems = $scrollArray(ref, 'number');
});

app.factory('$scrollArray', function($firebaseArray) {
  return function(ref, field) {
    // create a special scroll ref

tahoeRobbo

//Quick gist to prove the three ways (that I know of) to turn stringified numbers back into numbers in JavaScript.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//This can be done using parseInt(stringifiedNum), Number(stringifiedNum), and +stringifiedNum.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//See lines 10, 18, and 26 for usage

var add10 = function(numArray) {
	var added10 = [];
	for(var i = 0; i < numArray.length; i++) {
		added10.push(+numArray[i] + 10);

tahoeRobbo

/*CORRECT WORKING FUNCTION TO CONVERT TO BASE 64 AND DISPLAY PREVIEW*/
//var readFile;
var previewFile = function() {
		var preview = document.querySelector('#preview');
		var file = document.querySelector('input[type=file]').files[0];
		var reader = new FileReader();
		
		reader.onloadend = function() {
			preview.src = reader.result
		}

tahoeRobbo

angular.module('app')
.controller('ImageUpload', ['$scope', '$log',
	function ImageUpload($scope, $log) {
		$scope.upload_image = function (image) {
			if (!image.valid) return;

			var imagesRef, safename, imageUpload;
			
			image.isUploading = true;
			imageUpload = {

tahoeRobbo

// in the registration service...

//Register the user, and once registered create the firebaseObj with the full user info (which was input via registrationTmpl.html)
	this.register = function(user) {
		return auth.$createUser({
			email: user.email,
			password: user.password
		}).then(function(regUser) {
			console.log(regUser)
			//regUser.uid.replace('simplelogin', ''); //TRYING TO REMOVE SIMPLELOGIN NOT WORKING