📖 INDEX
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JS Callbacks
Master the execution flow and higher-order functions.
callback_tutorial.js
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AI Guide: A Callback is a function that is passed to another function as an argument. Imagine it as a 'pending task' to be executed later.
JS Skill Tree
Callback Concept
In JavaScript, functions are first-class objects. This means you can pass them around as if they were a simple variable (a number or a string).
💡 Golden Rule
A callback is not executed when you pass it (fn), it is executed when the container function decides to call it (fn()).
System Check: Callback Logic
What happens if you pass 'myFunction()' (with parentheses) as a callback?
Callback Glossary
Higher Order Function
Any function that accepts a function as an argument or returns a function.
Callback Hell
Term used when many callbacks are nested inside each other, making the code difficult to read.