Introduction
Convert String to Number in JavaScript is a common task when working with user inputs, APIs, or datasets. This snippet shows how to turn strings into usable numbers quickly and safely.
How to Convert String to Number in JavaScript
You can convert strings into numbers using parseInt(), parseFloat(), or simply Number() depending on the data type you need:
const intNum = parseInt(’42’); // 42
const floatNum = parseFloat(‘3.14’); // 3.14
const exactNum = Number(‘123’); // 123
How This Works
The Convert String to Number in JavaScript snippet shows three methods for converting string values to numbers for use in calculations or logic.
Why Use This?
Convert String to Number in JavaScript ensures your data is properly typed, reducing bugs in math operations and comparisons.
Common Mistake
Remember: parseInt() ignores decimals; use parseFloat() if you want them preserved.
Pro Tip
Use Number() when you need a clean, simple conversion and know your data is valid.