Lenora Porter lenoraporter

lenoraporter / understand-var-let-and-const.txt

Created April 9, 2020 05:49

Const must be initialized upon declaration

const meg; //Uncaught SyntaxError: Missing initializer in const declaration

lenoraporter / understand-var-let-and-const.txt

Created April 9, 2020 05:43

Const can't be redeclared

	const meganOnStage = "Hi, I'm Megan Thee Stallion."
	const meganOnStage = "Hi, I'm Meg." // Uncaught SyntaxError: Identifier 'meganOnStage' has already been declared

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 05:25

Let can be updated in same scope

	let ciara = "I'm engaged to Future.";
	ciara = "My husband is Russell Wilson."

	console.log(ciara); // My husband is Russell Wilson.

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:07

Const properties can be updated or mutated

	const theeStallionProfile = {
	name: "Megan Pette",
	stageName: "Megan Thee Stallion",
	situationShip: "MoneyBagYo",
	pets: {
	name: "4oe",
	breed: "French Bulldog"
	}
	}

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 05:48

Const cannot be updated

	const meganOnStage = "Hi, I'm Megan Thee Stallion."
	meganOnStage = "Hi, I'm Meg." // Uncaught TypeError: Assignment to constant variable.

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:08

Let can be redeclared in a different scope

	let ciara = "My husband is Russell Wilson.";
	let currentYear = 2019;

	if (currentYear <= 2015 && currentYear >= 2013) {
	let ciara = "I'm in love with Future."
	console.log(ciara);
	}
	console.log(ciara);

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:08

Let can be updated but not redeclared

	let ciara = "My husband is Russell Wilson.";
	let ciara = "I'm in love with Future." //Uncaught SyntaxError: Identifier 'ciara' has already been declared

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:08

Var can be redeclared and redefined :: Part 2

	var beyonce = "Hi, I'm Beyonce Knowles.";
	beyonce = "Hi, I'm Beyonce Carter.";

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:09

Var can be redeclared and redefined :: Part 1

	var beyonce = "Hi, I'm Beyonce Knowles.";
	var beyonce = "Hi, I'm Beyonce Carter.";

lenoraporter / understand-var-let-and-const.txt

Last active April 9, 2020 03:07

JavaScript let

	let sayLevelUp = "Level Up! ";
	let times = 5;

	if (times >= 1) {
	let lyrics = sayLevelUp.repeat(times);
	console.log(lyrics); // Level Up! Level Up! Level Up! Level Up! Level Up!
	}

	console.log(lyrics); // Uncaught ReferenceError: lyrics is not defined