How to get distinct values from an array of objects in JavaScript?
Here's a quick sneak-peak on eliminating duplication. This utilizes ES6's reduce
and findIndex
methods:
acc
captures the unique entities while cur
battles out the duplicates leveraging findIndex
.
Ways to Conquer Duplicates
Unleashing the Power of Set and map
For simple properties, Set
and map()
duo becomes an unbeatable choice:
Triumph over Complex Properties Using Map
For complex properties, Map
is the superhero to rescue:
Index Checks: The Old School Technique
At times, all you need is a traditional filter
with an indexOf
check:
Master Techniques and Thoughts
Chain Reaction: map()
, Set
, filter()
By combining these methods, you're not only ensuring cleaner code, but also expressing your intent clearly:
TypeScript: Type Safety
For TypeScript users, you'd be rewarded with type safety when applying similar patterns:
Performance Always Matters
Compared to traditional loops, these methods offer better performance, especially with large datasets.
Last One Stands: Data Integrity in Deduplication
While using the map
method, it retains the last occurrence in case of conflicts, which could be a blessing or a nightmare, based on your use case.
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