JavaScript Advanced
This section covers advanced function topics in JavaScript.
These chapters are best after you understand basic functions (calling, parameters, return values, expressions, and arrows).
Advanced Functions Learning Path
Step 1
Function Context and the this Keyword
Understand how this is decided by how a function is called.
Advanced
Step 3
apply(): Like call(), but arguments as an array
Use apply() when you already have an array of values.
Advanced
Step 4
bind(): Create a new function with fixed this
Use bind() when you need a function to run later with the same this.
Advanced
Step 5
Closures: Functions Remember Their Scope
Learn how functions can remember variables after the outer function finishes.
Advanced
Step 6
Function References and Callbacks
Pass functions as values and avoid common callback mistakes.
Advanced
Note
Advanced functions are easier when you reuse the same examples.
This section uses person, greet, and counter across multiple chapters.
