How to create a Set of Strings in TypeScript - Step by Step Examples

◀ Previous Next ▶

How to create a Set of Strings in TypeScript ?

Answer

In TypeScript, you can use a Set to create a collection of unique strings.

✐ Examples

1 Create Set of Strings in TypeScript

In this example,

We create a new Set object named stringSet to store strings.
We add strings to the set using the add method.
The resulting set contains unique strings in insertion order.

TypeScript Program

// Create a Set of strings
const stringSet: Set<string> = new Set();

// Add strings to the set
stringSet.add('Apple');
stringSet.add('Banana');
stringSet.add('Cherry');

// Print the set
console.log(stringSet);

Output

Set(3) { 'Apple', 'Banana', 'Cherry' }

2 Check if Set Contains a String

In this example,

We use the has method of the Set object to check if it contains a specific string.
The has method returns true if the string is in the set, otherwise false.

TypeScript Program

// Check if the set contains a string
const containsBanana: boolean = stringSet.has('Banana');
console.log('Set contains Banana:', containsBanana);

Output

Set contains Banana: true

Summary

In this tutorial, we learned How to create a Set of Strings in TypeScript language with well detailed examples.

◀ Previous Next ▶