How to Remove Specific Item from a Set in TypeScript - Step by Step Examples

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How to Remove Specific Item from a Set in TypeScript ?

Answer

To remove a specific item from a set in TypeScript, you can use the delete keyword.

✐ Examples

1 Remove Item '2' from a Set

In this example,

First, we create a Set named numberSet with values const numberSet: Set = new Set([1, 2, 3, 4, 5]);.
Next, we use the delete keyword to remove the item '2' from numberSet.
The delete keyword removes the specified item from the set, if it exists.
We print the updated set to verify that '2' has been removed.

TypeScript Program

const numberSet: Set<number> = new Set([1, 2, 3, 4, 5]);
console.log('Original Set:', numberSet);
numberSet.delete(2);
console.log('Set after removing item 2:', numberSet);

Output

Original Set: Set(5) { 1, 2, 3, 4, 5 }
Set after removing item 2: Set(4) { 1, 3, 4, 5 }

2 Remove String "banana" from a Set

In this example,

First, we create a Set named stringSet with values const stringSet: Set = new Set(['apple', 'banana', 'orange']);.
Next, we use the delete keyword to remove the string 'banana' from stringSet.
The delete keyword removes the specified item from the set, if it exists.
We print the updated set to verify that 'banana' has been removed.

TypeScript Program

const stringSet: Set<string> = new Set(['apple', 'banana', 'orange']);
console.log('Original Set:', stringSet);
stringSet.delete('banana');
console.log('Set after removing 'banana':', stringSet);

Output

Original Set: Set(3) { 'apple', 'banana', 'orange' }
Set after removing 'banana': Set(2) { 'apple', 'orange' }

Summary

In this tutorial, we learned How to Remove Specific Item from a Set in TypeScript language with well detailed examples.

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