what's the vbscript's cint() function in javascript

[amy]

I have the following function to get the total qty:

function calttl()
{
var ttlqty
ttlqty=0
for (i = 0; i <= document.qtymai n.orderdetail.l ength-1; i++)
{
ttlqty = ttlqty + document.qtymai n.qty.item(i).v alue
}

}

The problem I have is the document.qtymai n.qty.item(i).v alue I get
look like a string, so the number I get for ttlqty is not add up the
number but concatenate.

How do I convert the value I get to a number in javascript?

Thanks for any help in advance.

Amy

[Lasse Reichstein Nielsen]

Re: what's the vbscript's cint() function in javascript

ajiwu@elario.co m (amy) writes:
[color=blue]
> The problem I have is the document.qtymai n.qty.item(i).v alue I get
> look like a string, so the number I get for ttlqty is not add up the
> number but concatenate.[/color]

<URL:http://jibbering.com/faq/#FAQ4_21>

/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Evertjan.]

Re: what's the vbscript's cint() function in javascript

amy wrote on 16 okt 2003 in comp.lang.javas cript:
[color=blue]
> ttlqty = ttlqty + document.qtymai n.qty.item(i).v alue
>[/color]

document.qtymai n.qty.item[i].value

I suspect.


--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Lasse Reichstein Nielsen]

Re: what's the vbscript's cint() function in javascript

"Evertjan." <exjxw.hannivoo rt@interxnl.net > writes:
[color=blue]
> amy wrote on 16 okt 2003 in comp.lang.javas cript:
>[color=green]
> > ttlqty = ttlqty + document.qtymai n.qty.item(i).v alue
> >[/color]
>
> document.qtymai n.qty.item[i].value
>
> I suspect.[/color]

Probably not. It sounds like document.qtymai n.qty is a collection.
These have a method called "item" (and some also have "namedItem" ).

The equivalent notation would be
document.qtymai n.qty[i].value

I assume qtymain is a form and qty is the name of some elements in
the form. The elements are probably checkboxes, since they have
been given the same name.

/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Evertjan.]

Re: what's the vbscript's cint() function in javascript

Lasse Reichstein Nielsen wrote on 16 okt 2003 in comp.lang.javas cript:[color=blue]
> "Evertjan." <exjxw.hannivoo rt@interxnl.net > writes:[color=green]
>> amy wrote on 16 okt 2003 in comp.lang.javas cript:[color=darkred]
>> > ttlqty = ttlqty + document.qtymai n.qty.item(i).v alue[/color]
>> document.qtymai n.qty.item[i].value
>> I suspect.[/color]
>
> Probably not. It sounds like document.qtymai n.qty is a collection.
> These have a method called "item" (and some also have "namedItem" ).
>
> The equivalent notation would be
> document.qtymai n.qty[i].value
>
> I assume qtymain is a form and qty is the name of some elements in
> the form. The elements are probably checkboxes, since they have
> been given the same name.[/color]

Would the qty[i] form be more tolerant of a stringed number, Lasse ?

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[amy J]

Re: what's the vbscript's cint() function in javascript



yes, the qtymain is a form, qty is a collection of input box. I try to
get all the value throught the loop, and get the total. The value I get
is correct, just add up became concatenate.
document.qtymai n.qty.item[i].value
doesn't help. still doing concatename.

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[Lasse Reichstein Nielsen]

Re: what's the vbscript's cint() function in javascript

"Evertjan." <exjxw.hannivoo rt@interxnl.net > writes:
[color=blue]
> Would the qty[i] form be more tolerant of a stringed number, Lasse ?[/color]

Probably not. I would expect square bracket notation and the "item"
function to behave the same.

The HTMLCollection interface is defined in the W3C DOM 2 HTML
specification:
<URL:http://www.w3.org/TR/DOM-Level-2-HTML/ecma-script-binding.html>
In the ECMAScript bindings it says that using
collection[1]
is equivalent to
collection.item (1)

However, in ECMAScript, collection[1] is equivalent to
collection["1"], since all property names are converted to strings
before being looked up.

Likewise, the "item" function might convert its argument to a number
before using it. It doesn't have to, though. I can see that
document.links. item("0x0")
isn't the same as
document.links. item("0")
in Opera.


/Lc
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Evertjan.]

Re: what's the vbscript's cint() function in javascript

amy J wrote on 16 okt 2003 in comp.lang.javas cript:
[color=blue]
> yes, the qtymain is a form, qty is a collection of input box. I try to
> get all the value throught the loop, and get the total. The value I get
> is correct, just add up became concatenate.
> document.qtymai n.qty.item[i].value
> doesn't help. still doing concatename.[/color]


<script>

// You can prevent a concatenation by

alert(1*"11"+1* "7") //this will give 18

// or

alert(+"11"+ +"7") //this will also give 18

//while

alert("11"+"7") //this will give 117


</script>

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[amy J]

Re: what's the vbscript's cint() function in javascript



Evertjan, thanks for the correct answer.

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