How to concatenate two numbers in javascript?

Question

I\'d like for something like 5 + 6 to return \"56\" instead of 11.

Answer 1

You can return a number by using this trick:
not recommended

[a] + b - 0

Example :

let output = [5] + 6 - 0;
console.log(output); // 56
console.log(typeof output); // number