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Havn't looked at much javascript lately, been nearly a year since I've last used it but I think I may need it for a small thing I want to do.
I have a smallish table with a few columns, the last being costs, would like to write a little script to add up the costs, work out the total and the average cost.
Just a bit confused as to how I get the value in each of the end columns to add up?
Anyone give me some pointers?
Cheers
I have a smallish table with a few columns, the last being costs, would like to write a little script to add up the costs, work out the total and the average cost.
Just a bit confused as to how I get the value in each of the end columns to add up?
Anyone give me some pointers?
Cheers
Havn't looked at much javascript lately, been nearly a year since I've last used it but I think I may need it for a small thing I want to do.
I have a smallish table with a few columns, the last being costs, would like to write a little script to add up the costs, work out the total and the average cost.
Just a bit confused as to how I get the value in each of the end columns to add up?
Anyone give me some pointers?
Cheers
I have a smallish table with a few columns, the last being costs, would like to write a little script to add up the costs, work out the total and the average cost.
Just a bit confused as to how I get the value in each of the end columns to add up?
Anyone give me some pointers?
Cheers
can't you use excel?
Nah, its a webbased table from my website.
I would place each value in an array and have JavaScript simply print out each value in the required column using a loop, then add up the total at the end and print that out as well.
cjh wrote:
> I would place each value in an array and have JavaScript simply print
> out each value in the required column using a loop, then add up the
> total at the end and print that out as well.
The table is already created, don't really fancy changing it as I'd need to use the script again on a much larger table which is already created...
I've a rough idea how to go about it but have no idea how to access the numerical data in the last column of each row.. this seems to be the bit thats causing me the most problems at the moment..
> I would place each value in an array and have JavaScript simply print
> out each value in the required column using a loop, then add up the
> total at the end and print that out as well.
The table is already created, don't really fancy changing it as I'd need to use the script again on a much larger table which is already created...
I've a rough idea how to go about it but have no idea how to access the numerical data in the last column of each row.. this seems to be the bit thats causing me the most problems at the moment..
You'd have to do it on the fly, wouldn't you: use document.write(), or similar method. Unless it's input boxes, then simply use 'myvariable = myvariable + document.myform.mytextbox_a.value' etc.
Well I kinda worked out the wa to do it, looking through the DOM for the HTML and javascript but its rather messy, not liking this much at all.
Think I'll just leave it and concentrate on something better.
Think I'll just leave it and concentrate on something better.