How to Combine Multiple Strings with JavaScript

Photo by 🇨🇭 Claudio Schwarz | @purzlbaum on Unsplash

Combining strings is something that we have to do often with JavaScript.

In this article, we’ll look at how to combine them with JavaScript.

Plus Operator

The + operator also lets us combine multiple strings together.

For instance, we can write:

const firstName = 'james',
  lastName = 'smith';
const greeting = 'hi' + ' ' + firstName + ' ' + lastName;

This is uglier than the other solutions since we have to use the + sign for each string expression.

Mutative Concatenation

We can concatenate to existing strings.

For instance, we can write:

const firstName = 'james',
  lastName = 'smith';
let greeting = 'hi'
greeting += ' ' + firstName + ' ' + lastName;

Then we concatenate to the greeting string.

We can’t use const to declare greeting since we’re assigning a new value to it.

Template Literals

Template literals are a newer string type that lets us interpolate expressions into them,.