Jorge Arévalo jorgeas80

Sass is a powerhouse language that is adding new features all the time. For this introduction we will go over the basics of the language and see how they all tie together. We will discuss nesting, parent selector definitions, variables, Sass math, @extends, and @mixins.

Code comments

Commenting your code is the number one awesome thing any developer can do. In CSS you can place comments in your code /* */, but this will appear in the actual CSS and sometimes you don't want or need all that stuff to be there.

In Sass comments are highly encouraged. Sass has what are called 'silent comments' using the // syntax. This will allow the developer to comment like crazy and none of this is exposed in the final CSS. An interesting feature is that Sass supports both types of comments.

Scss

var vs let vs const

The difference is scoping. var is scoped to the nearest function block and let is scoped to the nearest enclosing block (both are global if outside any block), which can be smaller than a function block.

function allyIlliterate() {
    //tuce is *not* visible out here

    for( let tuce = 0; tuce < 5; tuce++ ) {
 //tuce is only visible in here (and in the for() parentheses)

Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

	<!doctype html>
	<html lang="en"
	xmlns:ng="http://angularjs.org" id="ng-app" ng-app="awesomeApp"
	ng-strict-di="">
	<head>
	<title>Location test</title>

	<base href="/ng.location.test.html/">

	<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.min.js"></script>

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">

	<!--uncomment this. It has no effect in chrome device mode (part of dev tools). It doesn't contain initial-scale=1 on purpose -->
	<!--meta name="viewport" content="width=device-width"-->

	<style>
	/* Taken from http://stackoverflow.com/a/16432702/593722 */

	<!doctype html>

	<html>
	<head>
	<!-- Encoding -->
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

	<!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame -->
	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"></meta>

	[
	{
	"id": "q1",
	"text": "Property binding with [value]=\"foo\" or interpolation with {{foo}} results in",
	"options": [
	{
	"id": "q1.a1",
	"text": "One-way binding from the component to the view"
	},
	{

	{
	"line": "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.",
	"author": "Brian W. Kernighan"
	},
	{
	"line": "Walking on water and developing software from a specification are easy if both are frozen.",
	"author": "Edward V Berard"
	},
	{
	"line": "It always takes longer than you expect, even when you take into account Hofstadter's Law.",

	{
	"version": "0.2.0",
	"configurations": [
	{
	"name": "Launch Chrome against localhost, with sourcemaps",
	"type": "chrome",
	"request": "launch",
	"url": "http://localhost:4200",
	"sourceMaps": true,
	"webRoot": "${workspaceRoot}",

	# Compiled source #
	###################
	*.com
	*.class
	*.dll
	*.exe
	*.o
	*.so

	# Packages #

Jorge Arévalo jorgeas80

Code comments

var vs let vs const

Constant