How to use the forEach() iterator method In Typescript
We can use the forEach() loop to iterate through all the elements of the Set and then push each one of them into an array using the Array.push() method.
Syntax:
setName.forEach((val)=>{
arrayName.push(val);
});
Example: The below code example converts a Set into an array in TypeScript using forEach() loop method.
const testSet = new Set<number>();
for (let i = 1; i <= 5; i++) {
testSet.add(i);
}
console.log(testSet);
const arrayFromSet: number[] = [];
testSet.forEach((setVal) => {
arrayFromSet.push(setVal)
});
console.log(arrayFromSet);
arrayFromSet[5] = 5;
console.log(arrayFromSet);
Output:
Set (5) {1, 2, 3, 4, 5}
[1, 2, 3, 4, 5]
[1, 2, 3, 4, 5, 5]
How to Convert a Set to an Array in TypeScript ?
A Set in TypeScript is used to create a particular type of list that does not contain duplicate elements. If any element is repeated more than once it will automatically remove the duplicate existence and consider it only once in the list. In this article, we will convert these types of lists into arrays that accept duplicate values as well.
These are the following methods to convert a set to an Array:
Table of Content
- Using the Array.from() method
- Using the spread operator
- Using the forEach() iterator method
- Using a custom conversion function
- Using the Array.concat() Method