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JavaScript Remove random item from array and then remove it from array until array is empty
We are given an array of string / number literals. We are required to create a function removeRandom() that takes in the array and recursively removes one random item from the array and simultaneously printing it until the array contains items.
This can be done through creating a random number using Math.random() and removing the item at that index using Array.prototype.splice() and printing it until the length of array shrinks to 0.
Here is the code for doing the same −
Example
const arr = ['Arsenal', 'Manchester United', 'Chelsea', 'Liverpool',
'Leicester City', 'Manchester City', 'Everton', 'Fulham', 'Cardiff City'];
const removeRandom = (array) => {
while(array.length){
const random = Math.floor(Math.random() * array.length);
const el = array.splice(random, 1)[0];
console.log(el);
}
};
removeRandom(arr);The output in console can be −
Note − As it is a random output, it is likely to differ every time, so this is just one of many possible outputs.
Output
Leicester City Fulham Everton Chelsea Manchester City Liverpool Cardiff City Arsenal Manchester United
Updated on: 19-Aug-2020
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