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JavaScript Essentials
Make pages interactive. Learn variables, functions, logic, the DOM, events and working with data.
27 lessons · 4h · 27 lessons
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What you'll learn
- Variables & functions
- Logic
- The DOM
- Events
Curriculum
7 modules · 27 lessonsModule 1Getting started5 lessons
What JavaScript isPreviewAdding JavaScript & showing output
Variables: let & const
Data types
Comments
Module 2Operators & logic4 lessons
Operators
Comparisons & booleans
if / else
Loops
Module 3Functions4 lessons
Declaring functions
Parameters & return
Arrow functions
Scope
Module 4Arrays & objects4 lessons
Arrays
Array methods
Looping over arrays
Objects
Module 5The DOM3 lessons
Selecting elementsPreviewChanging content & styles
Creating & removing elements
Module 6Events & interaction4 lessons
Click events
Input events
Forms & preventDefault
Toggling on click
Module 7Putting it together3 lessons
Build a tip calculator
Common mistakes
Where to go next
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