Does anyone know how to properly sort an array in JavaScript? By default, the sort method doesn't work efficiently with numbers. For example:
a = [1, 23, 100, 3]
a.sort()
The sorted values of 'a' end up being:
[1, 100, 23, 3]
If you have any insights or suggestions, please let me know. Thank you!
This method has always been effective in my experience:
array.sort((x, y) => x - y);
If you implement the sorting function, it should be effective.
[1, 23, 100, 3].sort(function(a, b){
if (a > b)
return 1;
if (a < b)
return -1;
return 0
});
<script type="text/javascript">
function sortAscending(a,b)
{
return a - b;
}
var numbers = ["15", "2", "35", "20", "80", "3"];
document.write(numbers.sort(sortAscending));
</script>
When using the sort method, it is possible to provide a comparator function.
> fruits.sort(function(a, b) { return a < b ? -1 : a > b ? 1 : 0; });
[apple, banana, orange, strawberry]
Implement a unique sorting algorithm.
x = [5, 17, 80, 2];
x.sort(function(a,b){ return b-a; });
Check out this code snippet for sorting a JavaScript array in ascending order
code
function customSort(arr){
let isSorted = false;
while(!isSorted){
isSorted = true;
for(let j = 0; j < arr.length - 1; j++){
if(arr[j] > arr[j + 1]){
isSorted = false;
let tempVar = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = tempVar;
}
}
}
return arr;
}
let data = [45, 67, 12, 34, 78, 23];
customSort(data);
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