9 JavaScript Array Tips You Should Know

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Arrays are an integral part of JavaScript that you will be using all the time in your web development career. Here are 9 JavaScript array tips I use on a daily basis that help me build websites and apps.

What are your favorite tips for arrays in JavaScript? Let us know in the comments!

⏰ TIMESTAMPS ⏰

Introduction: 0:00

Duplicate an Array: 0:09

Merge Arrays: 0:39

Filter Unique Values in Array: 1:07

Array Items Matching a Condition: 1:49

Check if Every Item in Array Matches Condition: 2:24

Check if Some Items in Array Match Condition: 3:09

Intersection of Arrays: 3:35

Difference of Arrays: 4:28

Sort Items in an Array: 5:28

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Комментарии
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underrated channel thankyou for the great tutorials. deserver more likes and subscribers

pushkarkumar
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Very helpful, definitely brushed up on some of my JS array skills. Thank you so much, Hunter!

If I were to add one more, it'd be this number generation:
[...Array(100).keys()].map(x => ++x)

misokaso
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Extraordinary explanation thank you so much for your knowledge sharing your really awesome👌🏼👌🏼👌🏼😎

marimuthur
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Amazing video. Short and very informative, you won a sub!

marcosnicolau
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The more tools like this ones one has under the belt, the better.

TheCodingOdyssey
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Great tips! I've taken everything in my note.

I just learn sort() method before watching this video, The last tip you gave notes that "Duplicate array so original isn't modified". I console.log(numbers) after console.log(asc) and console.log(desc). The output shows that the original array is changed. Do I misunderstand something?

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