Type Casting

Lesson in the JavaScript Roadmap · Stage 4: Type Casting

Last updated 14 September 2026

What is Type Casting?

Type conversion (or typecasting) means the transfer of data from one data type to another. Implicit conversion happens when the compiler (for compiled languages) or runtime (for script languages like JavaScript) automatically converts data types. The source code can also explicitly require a conversion to take place.

Study this in the interactive course See the whole JavaScript roadmap

Free resources to learn Type Casting

ArticleType Conversions
ArticleType Casting in JavaScript

Type Casting: common questions

Can I learn Type Casting in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Type Casting in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Type Casting tutorial for beginners?

It is lesson 29 of 124 in the free JavaScript roadmap, in stage 4, Type Casting. If you are new to JavaScript, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.