How can I do string interpolation in JavaScript?

Question

Consider this code:

var age = 3;

console.log(\"I\'m \" + age + \" years old!\");

Are there any other ways to insert the value of a variabl

Answer 1

While templates are probably best for the case you describe, if you have or want your data and/or arguments in iterable/array form, you can use String.raw.

String.raw({
  raw: ["I'm ", " years old!"]
}, 3);

With the data as an array, one can use the spread operator:

const args = [3, 'yesterday'];
String.raw({
  raw: ["I'm ", " years old as of ", ""]
}, ...args);