variable with a number and a string

Question

how to declare a variable with a number and a string in javascript?

let carEngineSize = 2000cc ;

i get error message

Answer 1

let carEngineSize = '2000cc';
Hint:
Try to complete the JavaScript course for more information.

Answer 2

Declare just a string
let carEngineSize = "2000cc";
Or do not put units
let carEngineSize= 2000;
And next at printing the data print the units:
console.log(carEngineSize+ "cc");

Answer 3

Use in double quotes or you can use + sign
carEngineSize = "2000cc";

Answer 4

the other option is to make it an object with two separate properties, eg
let carEngineSize = { size: 2000, units: "cc" }