Jan 8, 2026 · The typeof operator returns a string indicating the type of the operand's value.

The typeof operator returns the data type of a JavaScript variable. In JavaScript, a primitive value is a single value with no properties or methods. JavaScript has 7 primitive data types: The …

Nov 9, 2020 · JavaScript has a special operator called typeof which lets you get the type of any value. In this article, we will learn how typeof is used, along with a few gotchas to watch out for.

Dec 13, 2024 · The typeof operator in JavaScript is used to determine the data type of a value or variable. It returns a string indicating the type, such as "string", "number", "boolean", "object", etc.

In this tutorial, you'll learn how to use the JavaScript typeof operator that returns a string representing the type of a value.

Sep 4, 2025 · Here's everything you need to know about the typeof operator so you don't waste time on the same mistakes. You'll walk away knowing exactly when to use typeof, what it …

Apr 11, 2025 · The typeof operator in JavaScript checks and returns a string of the data type of a variable. It can return up to nine possible data types for JavaScript variables, including string, …

You cannot use typeof to define if a JavaScript object is an array or a date. Both array and date return object as type. typeof is an ECMAScript1 (JavaScript 1997) feature. It is supported in all …

Sep 30, 2023 · The typeof operator is used to get the data type (returns a string) of its operand. The operand can be either a literal or a data structure such as a variable, a function, or an object.

Dec 9, 2022 · In this article, you will learn how to use the typeof operator, instances when you should not use typeof, and the best way to check type in JavaScript for such instances.