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Beginning JavaScript for React Native

Callbacks

 
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Callbacks are functions that are passed to other functions, and then called once the work of that function is complete. They can be called with or without arguments, and are a very useful construct - especially in a fundamentally asynchronous environment.

Summary of Content:

  • Callbacks are functions that are passed to other functions
  • Example of callback functions using setTimeout

Resources:

https://www.w3schools.com/jsref/metwinsettimeout.asp

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