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Free courseTechnology & IT

JavaScript Basics: Make a Web Page Interactive

Learn the core of JavaScript in five short lessons: variables, decisions, loops, functions, arrays, objects and the page DOM. Build a small working calculator and finish with a certificate of completion.

60minutes
5lessons
1final quiz
Freecertificate of completion

What you’ll be able to do

  • Explain what HTML, CSS and JavaScript each do on a web page
  • Run and test JavaScript in the browser developer console
  • Use variables, if statements, loops and functions to solve small problems
  • Store and transform lists of data with arrays, objects, map and filter
  • Select page elements, change their text and styles, and respond to clicks and typing
  • Build a small calculator with input checks and fix typical bugs using console messages

Curriculum

01

Course lessons

5 lessons · module quiz
  1. 01What JavaScript does: variables and valuesLesson
  2. 02Decisions, arrays and loopsLesson
  3. 03Functions, arrays and objectsLesson
  4. 04The DOM and events: changing the pageLesson
  5. 05Build a tip calculator and debug itLesson
  6. 06QUIZJavaScript Basics: final quizQuiz