Data Structures

How you store and manipulate data.

Maps
Completion percentage: 92.4% (21954)
Completion percentage: 92.4% (21954)

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2019

2020

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Sets
Completion percentage: 92.6% (22010)
Completion percentage: 92.6% (22010)

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2019

2020

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We asked members of the JavaScript community to share their “pick of the year”

My 2020 Pick: Josh W. Comeau

Josh Comeau has been an inspiration to me, and I can say the JS community in general. He writes very thoughtful articles on his blog, and they are some of the best I read in 2020 because they either helped me stay on top of the latest in JavaScript or helped me learn something new.

We asked members of the JavaScript community to share their “pick of the year”

Gift Egwuenu

Frontend Developer @ PassionatePeople

Typed Arrays
Completion percentage: 92.7% (22032)
Completion percentage: 92.7% (22032)

Percents
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2019

2020

Have used it
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Percents
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2019

2020

Have used it
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BigInt
Completion percentage: 93.4% (22186)
Completion percentage: 93.4% (22186)

Percents
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2020

Have used it
Know about it
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Recommended Resources

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