CODEWITHSUNDEEP
javascriptarraystypescriptobject
Alex
Alex

Reputation: 67248

Javascript object vs tuple efficiency

Say you have a large array of things.

Things can be stored as objects:

type LargeArray = {
   id: string;
   n: number;
}[];

or as tuples:

type LargeArray = [string, number][];

which of these is most efficient/fastest for loops and which uses the least memory?

Upvotes: -4

Views: 59

Answers (3)

Teja sai reddy Kudumula
Teja sai reddy Kudumula

Reputation: 11

I recommend using tuples when the data structure is fixed and won't change, as they are faster and more memory-efficient. However, for real-world projects, objects are a better choice because they are easier to read, extend, and maintain, even if they are slightly slower.

Upvotes: -1

Naman_Saini_18
Naman_Saini_18

Reputation: 17

Tuples ([string, number][]) are more memory-efficient and faster in loops due to better cache locality and no object overhead.

Objects ({ id: string; n: number }[]) use more memory but improve readability and flexibility.

For large datasets, tuples are better for performance, while objects are better for clarity.

Upvotes: -1

Abhishek
Abhishek

Reputation: 7

If performance and memory efficiency matter most, use tuples ([string, number][]). If readability and maintainability are more important, use objects.

Upvotes: -1

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