Dev.to
5/10/2026

String Polyfills and Common Interview Methods in JavaScript
Short summary
JavaScript tutorial on building string method polyfills (trim, includes, repeat) from scratch—demonstrates core programming concepts useful for coding interviews, but unrelated to AI.
- •Explains how JavaScript string methods work internally with two-pointer and sliding-window algorithms
- •Provides polyfill implementations for trim(), includes(), and repeat() as interview prep
- •Pure web development content; no AI or machine learning relevance
Generated with AI, which can make mistakes.
Is this a good recommendation for you?



