Return array with elements in random positions

Question

So I want the elements from the students variable to be pushed into the results array in a randomised order each time the code is ran.

I'm not sure how to do this as I am pretty new to JavaScript.

Here's my code.

function getRandomElement(arr){
  return arr[Math.floor((Math.random()* arr.length))];
}

var students = ['John', 'Dan', 'Jordan', 'Matt', 'Beth'];
var results = [];

for(var ) {
results.push (getRandomElement(students)); 
}
//console.log(getRandomElement(students));

console.log(results);

That will fix the syntax error but not make the program correct. — John Hascall, Jan 29 '16 at 13:15

score 1 · Answer 1 · answered Jan 29 '16 at 12:52

1

Maybe this helps. It splices a random item until the original array is empty.

var students = ['John', 'Dan', 'Jordan', 'Matt', 'Beth'];
var results = [];

while (students.length) {
    results.push(students.splice(Math.floor(Math.random() * students.length), 1)[0]); 
}

document.write('<pre>' + JSON.stringify(results, 0, 4) + '</pre>');

answered Jan 29 '16 at 12:52

Nina Scholz

376,160
25
347
392

Is it possible to return those results without using document.write? I'm trying to run this in JSBin. – illage4 Jan 29 '16 at 15:37
yes, for example wit alert: `alert(JSON.stringify(results, 0, 4));` – Nina Scholz Jan 29 '16 at 18:41

Return array with elements in random positions

1 Answers1