Discuss "remove comma" in the JavaScript Programming forum.

todd2006 · #1 May 7th, 2008, 09:55 AM

Hi,

I have this variable strvar

alert(strvar);

the strvar variable holds values like this FDS, SDFR,

strvar=FDS, SDFR,

I want to remove the last comma after SDFR

Can someone tell me the javascript function for it

todd

jmurrayhead · #2 May 7th, 2008, 10:03 AM

Try this:

Code:

strvar = strvar.substring(1, strvar.length-1);

todd2006 · #3 May 7th, 2008, 10:15 AM

hi,

i want to show the cities selected by user seperated by comma

but i want the last comma to be removed

i tried ur code but it still displays the comma

Code:

function calldro()
{

len = document.frm1.cityopt.length
i = 0
strvar = ""
for (i = 0; i < len; i++) 
{
	if (document.frm1.cityopt[i].selected) 
		{
			strvar = strvar + document.frm1.cityopt[i].value + ", "
		} 
}
alert(strvar);
strvar = strvar.substring(1, strvar.length-1);
	
}

jmurrayhead · #4 May 7th, 2008, 10:17 AM

You have to place that code before you use alert(strvar)

todd2006 · #5 May 7th, 2008, 10:25 AM

i did jmurrayhead it didnt work out

mehere · #6 May 7th, 2008, 10:31 AM

from what i can see, when you're building that var .. you're adding a comma and a space between each word ... try this

Code:

}
strvar = strvar.substring(1, strvar.length-2);
alert(strvar);
}

todd2006 · #7 May 7th, 2008, 10:31 AM

Jmuurayhead,

The code is cutting a character on the left side of the string and still keeping the comma at the end

i want it to cut the comma on the right side

todd

jmurrayhead · #8 May 7th, 2008, 10:35 AM

Your code should look like this:

Code:

function calldro()
{

len = document.frm1.cityopt.length
i = 0
strvar = ""
for (i = 0; i < len; i++) 
{
	if (document.frm1.cityopt[i].selected) 
		{
			strvar = strvar + document.frm1.cityopt[i].value + ", "
		} 
}
 
strvar = strvar.substring(1, strvar.length-2);
alert(strvar);
 
}

because there is a space, you need to change strvar.length-1 to strvar.length-2 as mehere suggested.

todd2006 · #9 May 7th, 2008, 10:38 AM

Ok,

Now here is the problem

this is my string

strvar=FDS, SDFR,

when i use the code you guys gave me this is the output

strvar=DS, SDFR

It removed the "F" also the first character in string

todd

jmurrayhead · #10 May 7th, 2008, 10:40 AM

You're right...do this:

Code:

function calldro()
{

len = document.frm1.cityopt.length
i = 0
strvar = ""
for (i = 0; i < len; i++) 
{
	if (document.frm1.cityopt[i].selected) 
		{
			strvar = strvar + document.frm1.cityopt[i].value + ", "
		} 
}
 
strvar = strvar.substring(0, strvar.length-2);
alert(strvar);
 
}

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Discuss "remove comma" in the JavaScript Programming forum.

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