typeof - JavaScript | MDN
Jul 8, 2025 · The typeof operator returns a string indicating the type of the operand's value.
JavaScript typeof - W3Schools
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 typeof …
JavaScript typeof Operator - GeeksforGeeks
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.
JavaScript typeof
In this tutorial, you'll learn how to use the JavaScript typeof operator that returns a string representing the type of a value.
JavaScript Type Checking – How to Check Type in JS with typeof ()
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.
JavaScript - typeof Operator - Online Tutorials Library
The typeof operator in JavaScript is a unary operator used to get the data type of a particular variable. It is placed before its single operand, which can be of any type.
Understanding JavaScript's typeof Operator and Type Checking
Jun 24, 2025 · Explore the typeof operator in JavaScript, how to check variable types, the quirks with null, arrays, and objects, and practical usage tips. In JavaScript, understanding data types is crucial …
JavaScript Typeof: Checking Variable and Value Types
Aug 25, 2024 · Enter the typeof operator – a powerful tool in JavaScript that allows developers to check the type of a variable or value at runtime. In this comprehensive guide, we'll dive deep into the typeof …
JavaScript typeof Operator - Programiz
In this tutorial, you will learn about JavaScript typeof operator with the help of examples.
JavaScript typeof Operator - W3Schools
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 browsers: …