Solved

Using Replace Function

Posted on 2004-10-08
4
198 Views
Last Modified: 2010-04-17
How to use replace function in java script and on what situation should we use it
    thanks
0
Comment
Question by:sanilkrishna
  • 2
4 Comments
 
LVL 1

Expert Comment

by:alfanhendro
ID: 12256889
replace is used to replace some part of a string with another substring.
example code:


var strText = new String() ;
// Prepare a string of chars.
strText = 'This is XYZ a text. ';
// Write it into our document.
document.write ( strText ) ;
// Replace the XYZ with nothing.
var newstr = strText.replace('XYZ', '') ;
// Write it into our document.
document.write ( newstr ) ;


will display :

This is XYZ a text. This is  a text.
0
 
LVL 11

Accepted Solution

by:
pratap_r earned 50 total points
ID: 12257103
There is another use! you could use RegEx for searching and replacing. Heres an eg..

a="this is a test message. this is a tset message";
a=a.replace(/t[es]{2}t/gi,"cool");
alert(a);

note that there is a spelling mistake in one of the 'test' words, but the regex replaces both instances correctly!

heres another...
function trim(str){return str.replace(/^\s+/,'').replace(/\s+$/,'');}

Enjoy!
Pratap
0
 

Author Comment

by:sanilkrishna
ID: 12273766
Hello pratap,

I find this solution more appropriate as my scenario invites to change the dvision tag as given below

paneBeneficiary=beneficiaryDiv.innerHTML;
 where beneficiaryDiv is the division tag as given below
<div id="beneficiaryDiv" style="display:none">
 var temp = paneBeneficiary.replace(/transactionDetails\[\d+\]/g, "transactionDetails["+transCtr++ +"]");

Question
-----------
  the point which is confounding is what does the delimiters play a role here in the Regex function?
 could you please enlighten what is the exact format of the regex function which you have given me

  thanks and regards,
   sanil
0
 
LVL 11

Expert Comment

by:pratap_r
ID: 12274173
its the standard regex syntax, you can check http://www.regular-expressions.com for detailed explanations..
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
Computer science students often experience many of the same frustrations when going through their engineering courses. This article presents seven tips I found useful when completing a bachelors and masters degree in computing which I believe may he…
In this fourth video of the Xpdf series, we discuss and demonstrate the PDFinfo utility, which retrieves the contents of a PDF's Info Dictionary, as well as some other information, including the page count. We show how to isolate the page count in a…

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question