JavaScript: Create a n-dimensional array with given value

JavaScript fundamental (ES6 Syntax): Exercise-212 with Solution

n-Dimensional Array

Write a JavaScript program to create a n-dimensional array with a given value.

• Use recursion.
• Use Array.from(), Array.prototype.map() to generate rows where each is a new array initialized using initializeNDArray().

Sample Solution:

JavaScript Code:

// Define a function 'initializeNDArray' that creates a multi-dimensional array with a specified value
const initializeNDArray = (val, ...args) =>
  // If no dimensions are provided, return the specified value
  args.length === 0
    ? val
    // If dimensions are provided, recursively create multi-dimensional arrays
    : Array.from({ length: args[0] }).map(() => initializeNDArray(val, ...args.slice(1)));

// Test the 'initializeNDArray' function by creating multi-dimensional arrays with specified values
console.log(initializeNDArray(1, 3));
// Output: [1, 1, 1]
console.log(initializeNDArray(5, 2, 2, 2));
// Output: [[[5, 5], [5, 5]], [[5, 5], [5, 5]]]

Output:

[1,1,1]
[[[5,5],[5,5]],[[5,5],[5,5]]]

Visual Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-212-1 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript program that creates an n-dimensional array with all elements set to a given value.
• Write a JavaScript function that recursively builds a multi-dimensional array given a dimension and a default value.
• Write a JavaScript program that initializes a nested array structure based on an array of dimensions.
• Write a JavaScript function that returns an n-dimensional array where each sub-array is created using a recursive algorithm.

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