Check If a String Includes All Strings in JavaScript/Node.js/TypeScript

When working with strings in JavaScript, you may want to check if a given string contains all values from a list of candidates.

JavaScript comes with a String#includes(needle) determining whether the string contains the given needle. You can combine the existing method with array methods to check whether all candidate strings are part of the base string.

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)

Check If a String Includes All Strings

JavaScript comes with helpful array and string methods that will help you determine whether a base string contains all values from a list of strings. You can use the Array#every in combination with the String#includes method to check if all items from the candidate list are part of the base string:

/**
 * Determine whether the given `str` includes all needles.
 *
 * @returns {Boolean}
 */ 
includesAll(str, ...needles) {  
  return [].concat(...needles).every(needle => {
    return str.includes(needle)
  })
}

const includesAll = includesAll('Hello Marcus, you look good today!', ['look', 'good'])  
// true

const includesAll = includesAll('Hello Marcus, you look good today!', ['look', 'bad'])  
// false

The includesAll method returns true if all items in the candidate list are part of the source string. Otherwise, it returns false.

Use the @supercharge/strings Package

I’m the maintainer of the @supercharge/strings package providing convenient string utilities. Checking if a string contains all needles is one of the available methods:

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

const includesAll = Str('Hello Marcus, you look good today!').includesAll('look', 'good')  
// true

const includesAll = Str('Hello Marcus, you look good today!').includesAll('look', 'bad')  
// false

Enjoy!


Mentioned Resources

Explore the Library

Find interesting tutorials and solutions for your problems.