How to convert a string to a number in JavaScript
Converting strings to numbers is essential for form data processing, mathematical calculations, API data handling, and implementing features like calculators or numeric validation in JavaScript applications.
With over 25 years of experience in software development and as the creator of CoreUI, I’ve implemented string-to-number conversion extensively in components like input fields, calculators, and data processors where reliable numeric conversion ensures proper mathematical operations and data integrity.
From my extensive expertise, the most robust and recommended approach is using the Number()
constructor, which provides consistent conversion behavior and clear error handling.
This method is explicit, handles various string formats, and produces predictable results across different scenarios.