Here is a systematic explanation of how to convert an array to a set in JavaScript:
- Create an Array: First, you create an array with some values. For example:
const myArray = [1, 2, 3, 4, 5];In this step, myArray is an array that contains the numbers 1 through 5.
- Use the Set Constructor: JavaScript provides a Set constructor that you can use to create a set from an array. To do this, you create a new instance of the Set constructor and pass your array as an argument:
const mySet = new Set(myArray);Here, mySet is a new set created from the elements in myArray. The Set constructor automatically removes duplicate values, so you will get a set containing only the unique elements.
- Result: After these steps, mySet is now a Set object that contains the unique elements from the original array. It automatically removes duplicates, so you have a collection of distinct values. Now, you can use the methods and properties of the Set object to work with your data. For example, you can check if a value exists in the set using the has method or iterate over the elements using a for…of loop.
Here is the complete code again for reference:
const myArray = [1, 2, 3, 4, 5];
const mySet = new Set(myArray);Now, mySet contains the unique elements from myArray, and you can work with them using
the Set methods.