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Alternative shuffle in JavaScript
Alternative Shuffle
An alternatively shuffled array in JavaScript is an array of Numbers in which numbers are indexed such that greatest number is followed by the smallest element, second greatest element is followed by second smallest element and so on.
For example: If the input array is −
const arr = [11, 7, 9, 3, 5, 1, 13];
Then the output should be &minus
const output = [13, 1, 11, 3, 9, 5, 7];
Example
Following is the code −
const arr = [11, 7, 9, 3, 5, 1, 13];
const sorter = (a, b) => a - b;
const alternateShuffle = (arr) => {
const array = arr
.slice()
.sort(sorter);
array.sort((a, b) => a-b);
for(let start = 0; start < array.length; start += 2){
array.splice(start, 0, array.pop());
}
return array;
};
console.log(alternateShuffle(arr));Output
This will produce the following output in console −
[ 13, 1, 11, 3, 9, 5, 7 ]
Updated on: 18-Sep-2020
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