Jul 8, 2025 · The typeof operator returns a string indicating the type of the operand's value.

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.

The typeof Operator The typeof operator returns the data type of a JavaScript variable.

Jul 23, 2025 · In this article, How to Check the Type of a Variable or Object in JavaScript? In JavaScript, the typeof operator is used to determine the typeof an object or variable.

In JavaScript, variables (and properties) don't have types: values do. Further, there are only 6 types of values: Undefined, Null, Boolean, String, Number, and Object.

Apr 16, 2025 · Learn how to check data types in JavaScript using the typeof keyword, with examples and best practices.

Feb 5, 2025 · Explore JavaScript type checking methods with examples to avoid errors and write more reliable code. Type checking is an important concept in JavaScript. It helps you to …

Apr 11, 2025 · The typeof operator in JavaScript is used to check the data type of a variable in code. It can determine if a variable's data type is an array, boolean or other. Summary: The …

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 …

What Does a Type Do? First, it’s important to note that JavaScript’s values have fixed types, but variables do not.