Section 1 - Instruction

You've learned functions and loops separately. Now let's combine them to create sophisticated code that can process data, make decisions, and automate complex tasks efficiently.

This is where JavaScript becomes truly powerful for building interactive web applications.

Engagement Message

Ready to create some impressive dynamic features?

Section 2 - Practice

Type

Fill In The Blanks

Markdown With Blanks

Let's practice creating functions that work with arrays. Fill in the missing parts to create a function that finds the total of an array of numbers:

Suggested Answers

  • numbers
  • length
  • return
Section 3 - Practice

Type

Multiple Choice

Practice Question

You want to display a list of products on a webpage. Which approach combines functions and loops most effectively?

A. Write separate code for each product B. Use a loop inside a function to process an array of products C. Use only functions without loops D. Use only loops without functions

Suggested Answers

  • A
  • B - Correct
  • C
  • D
Section 4 - Practice

Type

Sort Into Boxes

Practice Question

Sort these code concepts by whether they're best for organizing code or repeating actions:

Labels

  • First Box Label: Code Organization
  • Second Box Label: Repetitive Actions

First Box Items

Sign up
Join the 1M+ learners on CodeSignal
Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal