String

used for holding text

3 ways to create strings:

using single quotes:

const first = 'Soumya';

using double quotes:

const middle = "Ranjan";

using backticks:

	const last = `Mohanty`;

single quotes and double quotes are the same thing.

used for: "she's cool"

or escaping: 'she\'s cool'

backticks:

const sentence = `she's so "cool"`;
console.log(sentence); // she's so "cool"

Multi-line string:

const song = 'Oh \
I like \
pizza';

console.log(song); // Oh I like pizza

const song = `Oh
I like
pizza`;

console.log(song); 
/*
Oh
I like
pizza
*/

2nd one using backticks is mostly used.

String concatenation and interpolation

'+' is used for concatenation. It is also used for adding 2 nos.
Concatenation: when 2 or more strings combined to one
Interpolation: when you put a variable inside a string
Example 1:

const name = 'Soumya';

const hello = 'Hello my name is ' + name + '. Nice to meet you.'

(can use double or single quotes)

Example 2:

1+1 // 2
'1'+'1' // 11
1 + '1' // 11

Example 3:

const name = 'Soumya';
const hello = `Hello my name is ${name}. Nice to meet you. I am ${100+1} years old.`;
console.log(hello); // Hello my name is Soumya. Nice to meet you. I am 101 years old.

Backticks also used for tagged template literals.
Backticks are helpful for creating HTML:

const html = `
	<div>
		<h2>Hey everyone! I am ${name}.</h2>
	</div>
`;