When comparing a string with a number, JavaScript will convert the string to a number when doing the comparison. An empty string converts to 0. A non-numeric string converts to NaN which is always …

I want to write an if/else statement that tests if the value of a text input does NOT equal either one of two different values. Like this (excuse my pseudo-English code):

Jul 8, 2025 · The inequality (!=) operator checks whether its two operands are not equal, returning a Boolean result. Unlike the strict inequality operator, it attempts to convert and compare operands that …

Nov 12, 2025 · Not equals: In maths the notation is ≠, but in JavaScript it’s written as a != b. In this article we’ll learn more about different types of comparisons, how JavaScript makes them, including …

The !== operator is the most reliable way to check if two values are not equal. It returns true if the values are not equal or are not of the same type, and false if they are.

Learn how to use the does not equal operator in JavaScript effectively. Explore the differences between '!=' and '!==' to avoid common pitfalls in your coding. Enhance your JavaScript skills with practical …

Learn how to use the does not equal operator in JavaScript effectively. This guide explains the differences between != and !==, helping you write accurate and bug-free code.

Mar 11, 2022 · Learn about JavaScript not equal and comparison operators. Understand how to use them effectively for precise comparisons and logical operations.

Mar 8, 2024 · In this article, we’ll embark on an in-depth exploration of the not equal operator in JavaScript, uncovering its purpose, behavior, and best practices for usage.

Description The Not Equal Comparison Operator (!=) returns true if the operands are not equal.