Count Words in String

countWords

Counts the number of words in a string, supporting multiple languages and scripts. This function uses a Unicode-aware regular expression to accurately identify words across different writing systems.

Function Signature

export function countWords(text: string): number

Parameters

Name	Description
text	The input string to count words from.

Returns

Returns the number of word-like tokens found in the string.

Example

countWords('Hello world!'); // 2
countWords('これはテストです'); // 1
countWords('123 apples, 456 oranges'); // 4

Aliases

• countWordsInString: Alias for countWords
• wordCount: Alias for countWords

Notes

• This function is Unicode-aware and supports letters with diacritics, punctuation like apostrophes, and hyphenated words.
• Numbers are counted as words.

Conclusion

Use countWords to accurately determine word count in multilingual or mixed-content strings. Ideal for input validation, content analysis, and linguistic metrics.