How to Shuffle an Array in TypeScript - Step by Step Examples

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How to Shuffle an Array in TypeScript ?

Answer

In TypeScript, you can use the same Fisher-Yates shuffle algorithm as in JavaScript.

✐ Examples

1 Shuffle Array of Integers

In this example,

We have an array named intArray containing integers.
We define a function shuffleArray that applies the Fisher-Yates shuffle algorithm to intArray.
We print the shuffled array to demonstrate the shuffling.

TypeScript Program

function shuffleArray<T>(array: T[]): T[] {
    for (let i = array.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [array[i], array[j]] = [array[j], array[i]];
    }
    return array;
}

const intArray: number[] = [1, 2, 3, 4, 5];
const shuffledArray = shuffleArray(intArray);
console.log('Shuffled Array:', shuffledArray);

Output

Shuffled Array: [ 5, 2, 1, 4, 3 ]

2 Shuffle Array of Strings

In this example,

We have an array named strArray containing strings.
We define a function shuffleArray that applies the Fisher-Yates shuffle algorithm to strArray.
We print the shuffled array to demonstrate the shuffling.

TypeScript Program

function shuffleArray<T>(array: T[]): T[] {
    for (let i = array.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [array[i], array[j]] = [array[j], array[i]];
    }
    return array;
}

const strArray: string[] = ['apple', 'banana', 'cherry'];
const shuffledArray = shuffleArray(strArray);
console.log('Shuffled Array:', shuffledArray);

Output

Shuffled Array: [ 'banana', 'cherry', 'apple' ]

Summary

In this tutorial, we learned How to Shuffle an Array in TypeScript language with well detailed examples.

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How to Shuffle an Array in TypeScript - Step by Step Examples

How to Shuffle an Array in TypeScript ?

Answer

✐ Examples

1 Shuffle Array of Integers

TypeScript Program

Output

2 Shuffle Array of Strings

TypeScript Program

Output

Summary

More TypeScript Arrays Tutorials