To remove duplicate items from an array in javascript

duplicateRemover.js

var numbers = [1,2,5,3,7,5,6,8,9,9,0,3,4,5,6,5,5,4,3,3,4,4];

function duplicateRemover(numbers)
{
    var uniqueArray = []
    for(var i = 0; i< numbers.length ; i++)
    {
        if(uniqueArray.indexOf(numbers[i]) == -1)
        {
            uniqueArray.push(numbers[i]);
        }
    }
    return uniqueArray;

}
console.log(duplicateRemover(numbers));