
Skandh Gupta started this conversation 3 months ago.
What are these three dots in React doing?
What function do the three dots (...) serve in React and how are they used in different contexts, such as in function calls or object spread/rest properties?
codecool
Posted 3 months ago
The three dots (...) in React (and JavaScript in general) are known as the spread and rest operators. They serve different functions depending on the context in which they are used:
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Spread Operator: The spread operator is used to expand an iterable (like an array or object) into individual elements.
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Rest Operator: The rest operator is used to collect multiple elements into a single array or object.
The spread and rest operators enhance the flexibility and readability of your code by allowing you to easily handle collections of data, pass props, and manage state in a concise and intuitive manner.