JS replace help

[immi1979]

Hello friends,

I want to use replace function in javascript but the client wants that a particular word should be replaced a specified number of times.

For example...
In a particular page, I want to replace first 5 occurances of the word 'Telecom' to 'Telecommunications'. No matter how many times this word is used in the specified page.

Please help

[TheSealPortalTeam]

Ah? server-side is best for that kind-of stuff. Don't force javascript to do a recursive look though an unlimited amount of controls. Unless you have one specific control, this is not a good idea!

Here's a good script.

Code: Select all

<script type="text/javascript">
var visitorName = "TheSealPortalTeam";
var myOldString = "Hello username! I hope you enjoy your stay, username.";
var myNewString = myOldString.replace(/username/g, visitorName);

document.write("Old string =  " + myOldString); 
document.write("<br />New string = " + myNewString);

</script>

Or Just replace [MyTextBox] with the textbox or control

Code: Select all

<script type="text/javascript">
var replaceName= "Telecommunications";
var myOldString = [MyTextBox].value;
var myNewString = myOldString.replace(/telecom/g, replaceName);
[MyTextBox].value = myNewString
</script>

Hope that helps!
Added /Telecom/g instead of "telecom", so you replace ALL of the word.

[immi1979]

Originally Posted by TheSealPortalTeam

Ah? server-side is best for that kind-of stuff. Don't force javascript to do a recursive look though an unlimited amount of controls. Unless you have one specific control, this is not a good idea!

Here's a good script.

Code: Select all

<script type="text/javascript">
var visitorName = "TheSealPortalTeam";
var myOldString = "Hello username! I hope you enjoy your stay, username.";
var myNewString = myOldString.replace(/username/g, visitorName);
 
document.write("Old string =  " + myOldString); 
document.write("<br />New string = " + myNewString);
 
</script>

Or Just replace [MyTextBox] with the textbox or control

Code: Select all

<script type="text/javascript">
var replaceName= "Telecommunications";
var myOldString = [MyTextBox].value;
var myNewString = myOldString.replace(/telecom/g, replaceName);
[MyTextBox].value = myNewString
</script>

Hope that helps!
Added /Telecom/g instead of "telecom", so you replace ALL of the word.

thanks friend... but, I need that only... replace a speficific number of occurrances... please help

[Rakuli]

I think it would be better to have this guy change the text himself

You can acheive this in a fairly uneconomical way using

Code: Select all

<script type="text/javascript">

// get the text in the page
var bodytext = document.getElementsByTagName('body')[0].innerHTML;

// now loop through 5 times

for (i=0; i< 5; i ++)
{
       // replace the word (with matched word to preserve case
       bodytext = bodytext.replace(/[\s]{1}(telecom)[\s]{1}/i, " $1munications ");
}
// write the new body
document.getElementsByTagName('body')[0].innerHTML = bodytext;
</script>

Place that just before the </body> tag in your document.

[immi1979]

Originally Posted by Rakuli

I think it would be better to have this guy change the text himself

You can acheive this in a fairly uneconomical way using

Code: Select all

 
<script type="text/javascript">
 
// get the text in the page
var bodytext = document.getElementsByTagName('body')[0].innerHTML;
 
// now loop through 5 times
 
for (i=0; i< 5; i ++)
{
       // replace the word (with matched word to preserve case
       bodytext = bodytext.replace(/[\s]{1}(telecom)[\s]{1}/i, " $1munications ");
}
// write the new body
document.getElementsByTagName('body')[0].innerHTML = bodytext;
</script>

Place that just before the </body> tag in your document.

Thanks a lot dear... it works great... but it is not replacing the very first instance of the word business... it is replacing after that...

Please, I am not very much familiar with regex... thats why...

thanks again...

[Rakuli]

Update the the regex line with

Code: Select all

bodytext = bodytext.replace(/[\s]?(telecom)[\s]{1}/i, " $1munications ");

Previous there had to be a space before it matched, now the space is optional

[immi1979]

Thanks a lot friend... it works now...

really appreciate your help...

[Rakuli]

No problems.

[immi1979]

hi Rakuli...

1 more favour please

bodytext = bodytext.replace(/[\s]?(business)[\s]{1}/i, " <a href='a'>business</a> ");

here I want to use a variable instead of the word business both the sides... say the variable is

var keyword2Replace = "business";

How will we do that???

Thanks in advance...

[c010depunkk]

HTML: Select all

 var keyword2Replace = "business";
bodytext = bodytext.replace("/[\s]?("+keyword2Replace+")[\s]{1}/i", " <a href='a'>"+keyword2Replace+"</a> ");

I think this should work. Try it out....

[TheSealPortalTeam]

Well glad to see it's solved!

[immi1979]

Originally Posted by TheSealPortalTeam

Well glad to see it's solved!

It's not working after I changed the code you suggested... big problem for me...

variables in regular expression...

[Rakuli]

You have you to set it up a bit differently to use a variable.

Code: Select all

var replaceWord = 'business';
var regexObj = new RegExp ("(/[\s]?(" +replaceWord + ")[\s]{1}/", "i");

bodytext = bodytext.replace(regexObj, "<a href='a'>" + replaceWord + "</a> ");

[immi1979]

Please check Rakuli...

http://www.ukloancentral.co.uk/con_adds/check/test.htm

It's still not working...

[Rakuli]

Put this

Code: Select all

var replaceWord = 'business';
var regexObj = new RegExp ("(/[\s]?(" +replaceWord + ")[\s]{1})", "i");

Before the start of the for loop

[immi1979]

Hi Rakuli,

I have done this... but it is still not working... this time I have removed the prompt and specified to replace 5 occurances...

http://www.ukloancentral.co.uk/con_adds/check/test.htm

Please see this...