What are symbols in ES6 and how do they work?
An example of an AI chatbot conversation about understanding symbols in ES6.
What are symbols in ES6 and how do they work?
Symbols are a new primitive data type introduced in ES6. They are unique and immutable, often used as object property keys.
Can you give me an example of how to create a symbol?
Sure! You can create a symbol using the Symbol() function: const mySymbol = Symbol('description');.
What makes symbols different from strings?
Unlike strings, symbols are guaranteed to be unique, even if they have the same description. This prevents property name collisions.
How can I use symbols as object keys?
You can use symbols as keys in objects like this: const obj = { [mySymbol]: 'value' };.
Are there any built-in symbols in JavaScript?
Yes, JavaScript has several built-in symbols, like Symbol.iterator, which is used to define the default iterator for an object.
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