How to Find Unique Values in an Array Using ES6?

Obtaining Unique Values in an Array with ES6

Identifying unique values within an array is a common task in programming. In JavaScript, we can achieve this using the Set data structure and the spread operator.

The Set constructor takes an iterable (an array in this case) and returns a set containing only the unique values from the iterable. The spread operator (...) allows us to convert the set back into an array.

For example:

const a = [1, 1, 2];

const uniqueValues = [...new Set(a)];

The uniqueValues array will contain the elements [1, 2], allowing us to quickly obtain a list of unique values without the need for a secondary array or the complexity of hashmaps. This solution is particularly concise and efficient for ES6 environments.

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