[Javascript] Sorting Problem
Hakan M (Backbase)
hakan at backbase.com
Tue Sep 14 10:55:18 CDT 2004
I assume that parseFloat works the same way as parseInt. It will return
NaN if it cannot find a number, it will NOT return '0' since it doesn't
convert to a number, it only tries to parse for a number.
I think the following code will eliminate your error (not tested), but
I'm not sure it will do what you want.
function numeric_sort(element1, element2) {
element1 = parseFloat(element1);
element2 = parseFloat(element2);
if(typeof(element1)!='number') element1 = 0;
if(typeof(element2)!='number') element2 = 0;
element1 - element2;
return element1 - element2;
}
Regards,
H
Tim Makins wrote:
> I have a multi-dimensional array; some columns contains strings of text, and
> other columns contain numbers. The numbers in the array are stored as
> strings.
>
> When trying to sort the array, I tried the following functions with the
> my_array.sort() command to get the different types of sort: dictionary
> order, and numerical order. Both work fine on the columns containing
> numbers, but if I try the numeric sort on a column containing strings, it
> crashes with error 'Number Expected'. Is there an easy way out of this?
>
> Tim in Ireland.
>
> function alpha_sort(element1, element2) {
> if (element1 < element2) {return -1}
> else if (element1 > element2) {return 1}
> else {return 0}
> }
>
> function numeric_sort(element1, element2) {
> element1 = parseFloat(element1);
> element2 = parseFloat(element2);
> element1 - element2;
> return element1 - element2;
> }
>
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