Implementation of JavaScript find() function

Took 4 minutes 42 seconds to code JavaScript find() method that returns all elements of the array meeting a specific condition. Here is the code snippet.

Code:

arr = [18, 10, 65, 70];

function find(arr) {

var arr2 = [];

for (var i = 0; i < arr.length; i++) {

if (arr[i] > 18) {

arr2.push(arr[i]);

}

}

return arr2;

}

var new_arr = find(arr);

document.write(new_arr);

Result:

65,70