Array methods are list helpers
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JavaScript Builder Lab · Lesson 4 of 12
Array Methods You Can Actually Use
Meet a small practical set of array methods that help with filtering, finding, and transforming data.
Academy Plus
4 practice exercises
1 homework item
What you will learn
- Explain what an array method is in beginner-friendly JavaScript terms.
- Use push, includes, find, filter, and map for small practical list tasks.
- Recognize whether a method changes an array or creates a new result.
- Choose a simple array method based on the job the list needs to do.
- Avoid beginner mistakes such as expecting the wrong result type from a method.
Lesson shape
21 minute lesson with 7 sections, 4 exercises, 4 checkpoint questions, and 1 homework submission.
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Lesson outline
What this lesson includes
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push adds a new item
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includes and find ask list questions
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filter creates a smaller list
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map transforms each item
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Choose the method based on the job
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Why array methods matter next
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Homework
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Text response
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Array Methods You Can Actually Use: quick check
Write a short beginner explanation of the main idea from Array Methods You Can Actually Use.
Keep moving
Finish this lesson, then move forward without losing your place.
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