Length of String

Perlaki · 03-23-2001, 09:51 AM

How long is a piece of string? Sorry, couldn't resist it.

I need to control the length of a string.
I have a dynamic text box, that displays the velocity of my MC. Sometimes it shows up as 2.5, and sometimes 3.3423452352

Can I control it using one of the Functions>String functions. I've tried a few but am at a loss.
Please help?
Cheers
Simon

Jesse · 03-23-2001, 11:20 AM

A string is twice the length from the middle to either end

Now as for your problem, take a look at this sample script:

myString = "123.456789";
decimals = 2;
dotIndex = myString.indexOf( "." ) + 1;
shortened = myString.substr( 0, dotIndex+decimals );

decimals is a variable which you set to the number of decimal places you want to show.

Note this will totally screw up if there is no decimal point.. you'll have to add an If clause if that is at all likely, which cheks if:
myString.indexOf( "." ) == -1;
and if so, aborts. This means there is no dot in the orriginal string (indexOf returns -1 if it doesn't find the search string, which is a dot in this case).

Cheers

Jesse

mad_A · 03-23-2001, 11:40 AM

you could also use the Math.round( ); action. It will round your number down to the nearest integer. Or if you want a string of an exact length you can use
substring(string, index, count);..for example,
if myString = "onetwothree";
then writing...
newString =substring(myString, 1, 6);
would leave newString = "onetwo";
ie. six chars from the string.
I think that is for flash 4, but you can use the
myString.substring(from, to);
in flash 5.

A

Jesse · 03-23-2001, 12:11 PM

Like Arrays, Strings in Flash 5 are zero based so the first letter in a string is element Zero.
So if you wanted to use Mad_A's exmaple you would need to use myString.substring(0,6)

Cheers

Jesse

Perlaki · 03-23-2001, 12:16 PM

Nice one man, now I know how long my string is, plus I can control the length of my string. That's one more problem, solved, thanks a lot Jesse.
Do you know a way of controlling G Strings? That would be handy!

Perlaki · 03-23-2001, 12:21 PM

I've just seen your method Mad_A, but I'd already applied Jesse's. Thanks anyway,
Simon

Jesse · 03-23-2001, 12:22 PM

Lol. I'm afraid I've not had much experience with those sorts of Strings yet

Cheers

Jesse

03-23-2001, 11:20 AM	#2
Jesse Administrator Join Date: Nov 2000 Location: Australia Posts: 8,612	A string is twice the length from the middle to either end Now as for your problem, take a look at this sample script: myString = "123.456789"; decimals = 2; dotIndex = myString.indexOf( "." ) + 1; shortened = myString.substr( 0, dotIndex+decimals ); decimals is a variable which you set to the number of decimal places you want to show. Note this will totally screw up if there is no decimal point.. you'll have to add an If clause if that is at all likely, which cheks if: myString.indexOf( "." ) == -1; and if so, aborts. This means there is no dot in the orriginal string (indexOf returns -1 if it doesn't find the search string, which is a dot in this case). Cheers Jesse __________________ Cheers Jesse Stratford ActionScript.org Cofounder Email: presented in this way to stop spam-bots: My email is composed of my first name (jesse) followed by my last name (stratford) followed by @ followed by actionscript.org Please don't email or PM me Flash questions, that's what the Forums are for! Please don't rely on me reading my PMs either. Email me about important stuff.

03-23-2001, 12:11 PM	#4
Jesse Administrator Join Date: Nov 2000 Location: Australia Posts: 8,612	Like Arrays, Strings in Flash 5 are zero based so the first letter in a string is element Zero. So if you wanted to use Mad_A's exmaple you would need to use myString.substring(0,6) Cheers Jesse __________________ Cheers Jesse Stratford ActionScript.org Cofounder Email: presented in this way to stop spam-bots: My email is composed of my first name (jesse) followed by my last name (stratford) followed by @ followed by actionscript.org Please don't email or PM me Flash questions, that's what the Forums are for! Please don't rely on me reading my PMs either. Email me about important stuff.

03-23-2001, 12:22 PM	#7
Jesse Administrator Join Date: Nov 2000 Location: Australia Posts: 8,612	Lol. I'm afraid I've not had much experience with those sorts of Strings yet Cheers Jesse __________________ Cheers Jesse Stratford ActionScript.org Cofounder Email: presented in this way to stop spam-bots: My email is composed of my first name (jesse) followed by my last name (stratford) followed by @ followed by actionscript.org Please don't email or PM me Flash questions, that's what the Forums are for! Please don't rely on me reading my PMs either. Email me about important stuff.

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03-23-2001, 09:51 AM	#1
Perlaki Registered User Join Date: Dec 2000 Location: Liverpool, England Posts: 33	How long is a piece of string? Sorry, couldn't resist it. I need to control the length of a string. I have a dynamic text box, that displays the velocity of my MC. Sometimes it shows up as 2.5, and sometimes 3.3423452352 Can I control it using one of the Functions>String functions. I've tried a few but am at a loss. Please help? Cheers Simon


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03-23-2001, 11:40 AM	#3
mad_A The Zen of ActionScript Join Date: Mar 2001 Location: Dublin, Ireland Posts: 713	you could also use the Math.round( ); action. It will round your number down to the nearest integer. Or if you want a string of an exact length you can use substring(string, index, count);..for example, if myString = "onetwothree"; then writing... newString =substring(myString, 1, 6); would leave newString = "onetwo"; ie. six chars from the string. I think that is for flash 4, but you can use the myString.substring(from, to); in flash 5. A

03-23-2001, 12:16 PM	#5
Perlaki Registered User Join Date: Dec 2000 Location: Liverpool, England Posts: 33	Nice one man, now I know how long my string is, plus I can control the length of my string. That's one more problem, solved, thanks a lot Jesse. Do you know a way of controlling G Strings? That would be handy!

03-23-2001, 12:21 PM	#6
Perlaki Registered User Join Date: Dec 2000 Location: Liverpool, England Posts: 33	I've just seen your method Mad_A, but I'd already applied Jesse's. Thanks anyway, Simon