---
title: "Use strings in JavaScript"
slug: "using-strings-in-javascript"
updated: 2026-09-28T06:23:24Z
published: 2026-09-28T06:23:24Z
canonical: "help.quickbase.com/using-strings-in-javascript"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.quickbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Use strings in JavaScript

## Overview

In JavaScript, a **string** is a series of characters. Strings can include both **text** and **numbers** and are always contained within single or double **quotes**. You can use strings to define calculations and conditions within your form. *Example:*

```plaintext
var x = "FastField";
```

## How it works

You can **add** strings together. However, if there is at least one string, it will concatenate (combine side by side) as opposed to mathematically adding them. *Example:*

```plaintext
var x = "FastField_";
var y = 'Mobile_Forms';
return x + y;
FastField_Mobile_Forms
```

As we mentioned before, **numbers** can be strings too, but they do not function as they normally would when put in quotations. *Example:*

```plaintext
var x = "123";
var y = '456';
return x + y;
123456
```

You can also find the length of any text using the built-in **.length** property. *Example:*

```plaintext
var x = "FastField";
var y = x.length;
return y;
```

For more information about strings, *learn more about [JavaScript strings on W3Schools](http://www.w3schools.com/js/js_strings.asp)*.