Sort an Array of Numbers and String Javascript

Question

I would like to sort the following array by the max value of the index 0, and print the value and the index 1 of the corresponding array in Javascript:

[ 
  [ 600, 'marketing' ],
  [ 1500, 'it' ],
  [ 4200, 'healthy' ] 
  [ 2400, 'fitness' ],
  [ 3300, 'payment' ],
]

Like for example in this case: [ 4200, 'healthy' ]

There are plenty of tutorial on this stuff out there. Try writing some code then asking for help if it's not working. — Difster, Jul 08 '17 at 18:43
possible duplicate of https://stackoverflow.com/questions/1063007/how-to-sort-an-array-of-integers-correctly — Naga Sai A, Jul 08 '17 at 18:43
Have you tried anything? StackOverflow isn't a free "write code for me" service. Have you looked at [`Array.prototype.sort`](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) for example? — glhrmv, Jul 08 '17 at 18:44
FWIW, if all you need is the max value, a `.reduce()` is actually more appropriate… — deceze, Jul 08 '17 at 18:44

score 0 · Answer 1 · answered Jul 20 '17 at 10:17

You can use array.sort, using a compare function:

var arr = [ 
[ 600, 'marketing' ],
[ 1500, 'it' ],
[ 4200, 'healthy' ] 
[ 2400, 'fitness' ],
[ 3300, 'payment' ],
];
var compare = function(a,b) {
if (a[0]>b[0]) return 1; 
else if (a[0]<b[0])return -1;
return 0;
}

arr.sort(compare);

Sort an Array of Numbers and String Javascript

1 Answers1