The lesser-known Symbol in JavaScript and TypeScript

Опубликовано: 04 Июль 2026
на канале: Flo Woelki
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Symbols are truly unique in JavaScript and it is one of lesser known data types. This video covers everything you have to know about Symbols. If you're excited about a brilliant feature of TypeScript, check out this video:    • How did I not know this TypeScript type tr...  


📝 Description
In this video, I will demonstrate to you the real power of Symbols. This unique data type allows us to make properties in a JavaScript object truly unique, even when they share the same name, and are even "private". This video will provide an in-depth explanation of when and why to use this data type, including a real-world use case for using Symbols.


⏳ Timestamps:
00:00 - Introduction
00:38 - What are Symbols?
01:13 - First example using Symbols
05:29 - Second example using Symbols
07:05 - Outro


👋 Hey there!
If you are new to this channel: Hey 👋 my name is Flo and I am a professional software engineer with a passion for coding in Golang, TypeScript, JavaScript, and Rust. This channel is where I share that passion and dive into the exciting world of software engineering. Plus, I love using Emojis and paper-based animations (so have a look for that, if you want to find my videos).


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#javascript #symbols #datatype