
typeof - JavaScript | MDN - MDN Web Docs
Apr 3, 2025 · The typeof operator returns a string indicating the type of the operand's value.
JavaScript TypeOf – How to Check the Type of a Variable or …
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.
JavaScript typeof - W3Schools
JavaScript has 7 primitive data types: The typeof operator returns the type of a variable or an expression. In JavaScript, null is a primitive value. However, typeof returns "object". This is a …
type checking in javascript - Stack Overflow
You may also have a look on Runtyper - a tool that performs type checking of operands in === (and other operations). For your example, if you have strict comparison x === y and x = 123, y …
Finding Variable Type in JavaScript - Stack Overflow
In Java, you can use instanceOf or getClass() on a variable to find out its type. How do I find out a variable's type in JavaScript which isn't strongly-typed? For example, how do I know if the bar …
javascript - The most accurate way to check JS object's type?
The best way to find out the REAL type of an object (including BOTH the native Object or DataType name (such as String, Date, Number, ..etc) AND the REAL type of an object (even …
How to check the type of a variable or object in JavaScript ...
Jan 31, 2022 · In JavaScript, the typeof operator is used to determine the typeof an object or variable. JavaScript, on the other hand, is a dynamically typed (or weakly typed) language.
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 - 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 – How to Check the Type of a ... - Expertbeacon
Aug 30, 2024 · Understanding data types and type checking in JavaScript is a crucial skill for effective code. The typeof operator allows us to easily check the type of a variable or object in …