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[RESOLVED] match() problem…

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Jul 13.2008

I have a var vTotal with the string value of “$120.00 USD”, I am trying to get “120.00” out of that string. (The string will be dynamic.)

I am trying to use:
[COLOR=DarkRed]alert[/COLOR][COLOR=Navy][B]([/B][/COLOR]vTotal[B][COLOR=Navy])[/COLOR][/B];
[COLOR=Gray]// Sends An Alert Of “$120.00 USD”[/COLOR]

[COLOR=DarkRed]alert[/COLOR][B][COLOR=Navy]([/COLOR][/B]vTotal.[COLOR=SeaGreen]match[/COLOR][B][COLOR=Navy]([/COLOR][/B][COLOR=DarkGreen]/^d{1,3}(,d{3})*.dd$|^d+.dd$/[/COLOR][COLOR=Navy][B])[/B][/COLOR].test[B][COLOR=Navy]())[/COLOR][/B];
[COLOR=Gray]// No Alert Is Shown
// FireFox Error Console Shows That It’s Null[/COLOR]

[B]Firefox Error:[/B]
Error: vTotal.[COLOR=SeaGreen]match[/COLOR][COLOR=Navy][B]([/B][/COLOR][COLOR=DarkGreen]/^d{1,3}$/[/COLOR][B][COLOR=Navy])[/COLOR][/B] is null

I am pretty new to JavaScript but am familiar with xHTML/CSS and PHP. However, I’d appreciate a detailed response as to why it may not be working and what can be done to fix it.

Thanks ?

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JavaScript

7 Comments(s) ↴

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@mrhooJul 13.2008 — [CODE]var s='$120.00 usd';
var M= s.match(/^(D*)((.d+)|d+(.d+)?)(D*)$/);

if(M)alert(M[2]);
else alert('No digits found');[/CODE]



f you do not care about the non-digit characters,

you can simplify the regexp to /((.d+)|d+(.d+)?)/

and examine the first (M[1]) match position
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@Declan1991Jul 13.2008 — "$120.00 USD".match(/d+.d+?/gi);

There should be no test() after the match, and ^ marks the first in the string, so the $ will stop that much.

EDIT: I was beaten to it.
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@ShibStaauthorJul 13.2008 — Thanks for the response.

I just tried:

[COLOR=DarkRed]alert[/COLOR][COLOR=Navy][B]([/B][/COLOR]vTotal.[COLOR=SeaGreen]match[/COLOR][B][COLOR=Navy]([/COLOR][/B][COLOR=DarkGreen]/d{1,3}(,d{3})*.dd$|^d+.dd/[/COLOR][COLOR=Navy][B]))[/B][/COLOR];

and

[COLOR=DarkRed]alert[/COLOR][COLOR=Navy][B]([/B][/COLOR]vTotal.[COLOR=SeaGreen]match[/COLOR][COLOR=Navy][B]([/B][/COLOR][COLOR=DarkGreen]/((.d+)|d+(.d+)?)/[/COLOR][B][COLOR=Navy]))[/COLOR][/B];

Though they are showing an alert now, the alert says "null".

Thanks again. ?
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@mrhooJul 13.2008 — alert(vTotal)
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@ShibStaauthorJul 13.2008 — Erm, relevance?

alert(vTotal) will only output "$120.00 USD", as I mentioned in my initial post.

Thanks for trying to help though.
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@Declan1991Jul 13.2008 — The second works for me.

Butvar vTotal = "$120.00 USD";
alert(vTotal.match(/d{1,3}(,d{3})?(.d+)?/)[0]);is probably what I'd use.
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@mrhooJul 14.2008 — The point is that if vTotal contains any digits, either match would find them.

var vTotal='$120.00';

var M=vTotal.match(/((.d+)|d+(.d+)?)/)

alert(M[1]);
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