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let id: number = 5;
let company: string = "Eric";
let isBool: boolean = true;
let x: any = 2;
x = false;

let ids: number[] = [1, 2, 3, 4, 5];
let arr: any[] = [1, true, "asf"];

// Tuple (fixed number of elements and types)

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// PATTERN

// MODULE PATTERN

// BASIC Structure
// IIFE (immediate invoked function expression)
(function () {
	// Declare private vars and functions

	return {

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// SET - unique values

const set1 = new Set();

set1.add(100);
set1.add('A string');
set1.add({ name: 'John' });
set1.add(true);
set1.add(100);

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// MAP (key-value pair)

const map = new Map();

const key1 = 'string key',
	key2 = {},
	key3 = function () {};
map.set(key1, 'value of key1');
map.set(key2, 'value of key2');
map.set(key3, 'value of key3');

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// Destructuring Assignment

let a, b;
[a, b] = [100, 200];

// Basic + (rest)
[a, b, c, ...rest] = [100, 200, 300, 400, 500];

// # OBJECT # + (rest)
({ a, b, ...rest } = { a: 100, b: 200, c: 300, d: 400, e: 500 });

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const data = [
	{
		name: 'John Doe',
		age: 32,
		gender: 'male',
		lookingfor: 'female',
		location: 'Boston MA',
		image: 'https://randomuser.me/api/portraits/men/82.jpg'
	},
	{

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// Iterator
function nameIterator(names) {
	let nextIndex = 0;
	return {
		next: function () {
			return nextIndex < names.length
				? { value: names[nextIndex++], done: false }
				: { done: true };
		}
	};

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let reg, result, str;
reg = /hello/g; // global search
reg = /hello/;
reg = /hello/i; // i == flag : case insensitive

console.log(reg);
console.log(reg.source);

// exec() - result in array or null
result = reg.exec('hello world');

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const user = { email: 'jdoe@gmail.com' };

try {
	if (!user.name) {
		// throw 'User has no name';
		throw new SyntaxError('User has no name');
	}
} catch (e) {
	console.log(`User Error: ${e.message}`);
	// console.log(e.message);