AllCombinationsOfSizeK.js

function generateCombinations(n, k) {
 let currentCombination = []
 let allCombinations = [] // will be used for storing all combinations
 let currentValue = 1

 function findCombinations() {
 if (currentCombination.length === k) {
 // Add the array of size k to the allCombinations array
 allCombinations.push([...currentCombination])
 return
 }
 if (currentValue > n) {
 // Check for exceeding the range
 return
 }
 currentCombination.push(currentValue++)
 findCombinations()
 currentCombination.pop()
 findCombinations()
 currentValue--
 }

 findCombinations()

 return allCombinations
}

export { generateCombinations }