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JavaScript: Get the n minimum elements from the provided array

JavaScript fundamental (ES6 Syntax): Exercise-176 with Solution

Write a JavaScript program to get the n minimum elements from the provided array.
If n is greater than or equal to the provided array's length, return the original array (sorted in ascending order).

  • Use Array.prototype.sort() combined with the spread operator (...) to create a shallow clone of the array and sort it in ascending order.
  • Use Array.prototype.slice() to get the specified number of elements.
  • Omit the second argument, n, to get a one-element array.
  • If n is greater than or equal to the provided array's length, then return the original array (sorted in ascending order).

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const minN = (arr, n = 1) => [...arr].sort((a, b) => a - b).slice(0, n);
console.log(minN([1, 2, 3]));
console.log(minN([1, 2, 3], 2));

Sample Output:

[1]
[1,2]

Pictorial Presentation:

JavaScript Fundamental: Get the n minimum elements from the provided array.
JavaScript Fundamental: Get the n minimum elements from the provided array.

Flowchart:

flowchart: Get the n minimum elements from the provided array

Live Demo:

See the Pen javascript-basic-exercise-176-1 by w3resource (@w3resource) on CodePen.


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Next: Write a JavaScript program to get the minimum value of an array, after mapping each element to a value using the provided function.

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