Browser Support parseInt() is an ECMAScript1 (JavaScript 1997) feature. It is supported in all browsers:

Obviously, converting to a Number gives you a value that might be a float rather than an integer, so if you want an integer, you need to modify it. There are a few ways of doing this:

Jul 8, 2025 · The parseInt function converts its first argument to a string, parses that string, then returns an integer or NaN. If not NaN, the return value will be the integer that is the first argument taken as a …

Jul 23, 2025 · To convert a string to number in JavaScript, various methods such as the Number () function, parseInt (), or parseFloat () can be used. These functions allow to convert string …

Jun 29, 2022 · In this article, we looked at various methods and approaches for converting strings to integers in JavaScript. It is best to be aware that many methods exist so that you can choose what …

Nov 4, 2025 · This guide will break down the **best methods** for converting strings to integers in JavaScript, explain their inner workings with clear examples, and highlight edge cases and pitfalls to …

Jul 2, 2025 · Learn how to convert JavaScript strings to integers using parseInt, Number, or unary plus for reliable and efficient type conversion.

JavaScript offers multiple methods to convert a string into an integer or number, each with unique capabilities. Choosing the right method can make the code more efficient and accurate, especially …

Learn 9 simple ways to convert a string to an integer in JavaScript with examples and output. A complete guide for beginners to master type conversion easily.

Here is a list of approaches to convert string to integer in JavaScript which we will be discussing in this article with stepwise explaination and complete example codes.