How to usethe forEach Loop in Javascript
In this approach, we iterate over each element of the array using the forEach() loop and add each element to the Set. This method allows for explicit control over the transformation process and is particularly useful for performing additional operations on array elements before adding them to the Set.
Example:
const array = [1, 2, 3, 3, 4, 4, 5];
// Create an empty Set
const setFromArr = new Set();
// Iterate over each element of the array
array.forEach(element => {
// Add each element to the Set
setFromArr.add(element);
});
// Output the Set
console.log(setFromArr); // Output: Set(5) { 1, 2, 3, 4, 5 }
Output
Set(5) { 1, 2, 3, 4, 5 }
How to Convert Array to Set in JavaScript?
The goal is to transform a JavaScript Array into a Set using JavaScriptâs built-in features. This process involves taking all the elements from the array and putting them into a Set, which is a data structure that only contains unique values. By doing this conversion, we can efficiently manage and operate on the arrayâs elements without worrying about duplicates.
Below are the approaches to Converting Array to a Set in JavaScript:
Table of Content
- Approach 1: Using spread Operator
- Approach 2: Using the Set Constructor
- Approach 3: Using the forEach Loop
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