Rahul Tiwari ba11b0y

Lesson 6: Syntax

let: Variables can be reassigned, but can’t be redeclared in the same scope.
const: Variables must be assigned an initial value, but can’t be redeclared in the same scope, and can’t be reassigned.
Hoisting: Before any JavaScript code is executed, all variables are hoisted, which means they're raised to the top of the function scope.
Temporal dead zone: If a variable is declared using let or const inside a block of code, then the variable is stuck in what is known as the temporal dead zone until the variable’s declaration is processed.
Suggested to ditch var in place of using let and const.
Template literals: Denoted with backticks ( `` ), template literals can contain placeholders which are represented using ${expression}.
Examples:

Since Chrome apps are now being deprecated. Download postman from https://dl.pstmn.io/download/latest/linux

Although I highly recommend using a snap

sudo snap install postman

tar -xzf Postman-linux-x64-5.3.2.tar.gz

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

	// Contributor: julio641742

	/*
	In this example we will be click a button in the top bar,
	causing an event that create a text label (hello world), which with some
	animation, will be decreasing its opacity from 100% to 0%
	*/

	/* Import St because is the library that allow you to create UI elements */
	const St = imports.gi.St;

	// Related to https://issues.jenkins-ci.org/browse/JENKINS-26481

	abcs = ['a', 'b', 'c']

	node('master') {
	stage('Test 1: loop of echo statements') {
	echo_all(abcs)
	}

	stage('Test 2: loop of sh commands') {

	[Desktop Entry]
	Encoding=UTF-8
	Name=Postman
	Exec=postman
	Icon=/home/USERNAME/Postman/app/resources/app/assets/icon.png
	Terminal=false
	Type=Application
	Categories=Development;

	node {
	echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
	echo 'No quotes, pipeline command in single quotes'
	sh 'echo $BUILD_NUMBER' // 1
	echo 'Double quotes are silently dropped'
	sh 'echo "$BUILD_NUMBER"' // 1
	echo 'Even escaped with a single backslash they are dropped'
	sh 'echo \"$BUILD_NUMBER\"' // 1
	echo 'Using two backslashes, the quotes are preserved'
	sh 'echo \\"$BUILD_NUMBER\\"' // "1"

	==========================
	How Software Companies Die
	==========================
	- Orson Scott Card

	The environment that nurtures creative programmers kills management and
	marketing types - and vice versa.

	Programming is the Great Game. It consumes you, body and soul. When
	you're caught up in it, nothing else matters. When you emerge into

	<html>
	<head>
	<title>WebSocket demo</title>
	</head>
	<body>

	<div>
	<form>
	<label for="numberfield">Number</label>
	<input type="text" id="numberfield" placeholder="12"/><br />