Remove Numbers From a String in JavaScript or Node.js

JavaScript comes with handy string methods. RegEx support in JavaScript string methods is helpful in a lot of use-cases. For example, if you want to remove all numbers from a string: JavaScript has your back!

Node.js Series Overview

  1. String Replace All Appearances
  2. Remove All Whitespace From a String in JavaScript
  3. Generate a Random ID or String in Node.js or JavaScript
  4. Remove Extra Spaces From a String in JavaScript or Node.js
  5. Remove Numbers From a String in JavaScript or Node.js
  6. Get the Part Before a Character in a String in JavaScript or Node.js
  7. Get the Part After a Character in a String in JavaScript or Node.js
  8. How to Check if a Value is a String in JavaScript or Node.js
  9. Check If a String Includes All Strings in JavaScript/Node.js/TypeScript
  10. Check if a Value is a String in JavaScript and Node.js
  11. Limit and Truncate a String to a Given Length in JavaScript and Node.js
  12. Split a String into a List of Characters in JavaScript and Node.js
  13. How to Generage a UUID in Node.js
  14. Reverse a String in JavaScript or Node.js
  15. Split a String into a List of Lines in JavaScript or Node.js
  16. Split a String into a List of Words in JavaScript or Node.js
  17. Detect if a String is in camelCase Format in Javascript or Node.js
  18. Check If a String Is in Lowercase in JavaScript or Node.js
  19. Check If a String is in Uppercase in JavaScript or Node.js
  20. Get the Part After First Occurrence in a String in JavaScript or Node.js
  21. Get the Part Before First Occurrence in a String in JavaScript or Node.js
  22. Get the Part Before Last Occurrence in a String in JavaScript or Node.js
  23. Get the Part After Last Occurrence in a String in JavaScript or Node.js
  24. How to Count Words in a File
  25. How to Shuffle the Characters of a String in JavaScript or Node.js
  26. Append Characters or Words to a String in JavaScript or Node.js
  27. Check if a String is Empty in JavaScript or Node.js
  28. Ensure a String Ends with a Given Character in JavaScript or Node.js
  29. Left-Trim Characters Off a String in JavaScript or Node.js
  30. Right-Trim Characters Off a String in JavaScript or Node.js
  31. Lowercase the First Character of a String in JavaScript or Node.js
  32. Uppercase the First Character of a String in JavaScript or Node.js
  33. Prepend Characters or Words to a String in JavaScript or Node.js
  34. Check if a String is a Number
  35. Convert a String to Buffer
  36. Prevent Line Breaks in String Template Literals
  37. How to Implement a Custom `toString` Method (Coming soon)
  38. What Is `Symbol.toStringTag` and How to Use It (Coming soon)

Strip Numbers From a String

JavaScript comes with built-in methods to remove all numbers from a string. A way to remove numbers is to replace them with an empty string. A regular expression is a good way to find all numbers in the string and replace them:

const greeting = 'Hello Marcus, welcome in 2020';

const withoutNumbers = greeting.replace(/\d+/g, '')

// or (works the same way and is a bit more verbose)
const withoutNumbers = greeting.replace(/[0-9]/g, '')

// withoutNumbers = 'Hello Marcus, welcome in '

The \d RegEx matches any number. The + modifier is a flag to match all adjacent numbers. Using /g finds and replaces all numbers in the string in one go.

Use a Package

I’m the maintainer of the @supercharge/strings package providing convenient string utilities. Stripping numbers from a string are is one of the available functions.

const Str = require('@supercharge/strings')

const withoutNumbers = Str('Hello Marcus, welcome in 2020').stripNums().get()

// 'Hello Marcus, welcome in '

Enjoy!


Mentioned Resources

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