TypeScript Tutorials

How to Remove Element from Array based on a Condition in TypeScript

How to Remove Element from Array based on a Condition in TypeScript ?

Answer

In TypeScript, you can use the same approach as JavaScript to remove elements from an array based on a condition using the `filter` method.

✐ Examples

1 Remove Numbers Greater Than 5

In this example,

We create an array named `numbers` with elements including those to be removed based on the condition.
We use the `filter` method with a condition to create a new array excluding numbers greater than 5.
Finally, we get a new array with numbers not greater than 5.

TypeScript Program

let numbers: number[] = [1, 6, 2, 7, 3, 8, 4, 9, 5];
let filteredNumbers = numbers.filter(num => num <= 5);
console.log('Array after filtering:', filteredNumbers);

Output

Array after filtering: [ 1, 2, 3, 4, 5 ]

2 Remove Strings Starting with 'A'

In this example,

We create an array named `words` with elements including those to be removed based on the condition.
We use the `filter` method with a condition to create a new array excluding strings starting with 'A'.
Finally, we get a new array with strings not starting with 'A'.

TypeScript Program

let words: string[] = ['Apple', 'Banana', 'Apricot', 'Grape', 'Mango'];
let filteredWords = words.filter(word => !word.startsWith('A'));
console.log('Array after filtering:', filteredWords);

Output

Array after filtering: [ 'Banana', 'Grape', 'Mango' ]

Summary

In this tutorial, we learned How to Remove Element from Array based on a Condition in TypeScript language with well detailed examples.

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How to Remove Element from Array based on a Condition in TypeScript

How to Remove Element from Array based on a Condition in TypeScript ?

Answer

✐ Examples

1 Remove Numbers Greater Than 5

TypeScript Program

Output

2 Remove Strings Starting with 'A'

TypeScript Program

Output

Summary

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