IT Knowledge Sharing | Interview questions

Use split and join method... var myText="Hello \I\am java\script"; alert(myText. split('\\').join(' ') );

<select id="myCombo" onchange="moreOptions()">       <option value="-1" selected="selected">Select options</option>       <option id=" myCombo _1" value="1">One</option>       <option id=" myCombo _2" value="2">Two</option>       <option id=" myCombo _3" value="3">Three</option>    </select>  Javascript to reset onChange() method... function moreOptions(){ var selectedOption=document.getElementById(" myCombo ").value; if(selectedOption=="1"){ .......... }else if(selectedOption=="2"){ ........ }else if(selectedOption=="3"){ ....... }else{           document.getElementById("   myCombo   ").selectedIndex="0";   //reset combox box with "Select options"         } }

If you want to create a message notification div with auto hide property using jquery, see the code here Add this to your java script code...  $(document).ready(function() { $('#messageDiv').delay(5000).fadeOut('slow');   }); ----------------------------------------------------- <style  type="text/css" > notificationDiv{   background: #FCFFB2;    color: white;   font-size:13px;    font-weight:bold;     padding-top: 3px;    text-align:center;     width:300px;      height:20px;      } </style> And create div where you want to show in your page...     <div id=" messageDiv   " class="notificationDiv" >     This is a notification div </div>          

Screen flickers in android devices while works fine in iPhone We are using HTML5 and jquery mobile, when we use page transitions like slide or pop etc, it works fine in iPhone but if we use android phone, screen flickers during page transition.. We have also used stack overflow solutions like ui-page { -webkit-backface-visibility: hidden; } But this is no working yet...

If you want to highlight a row on click, include jquery js at your head tag and add following... <style type="text/css">          tr.walkRows td {        background: #D7DF23;     }   </style> <script type="text/javascript">  $(document).ready(function() { $('tr').click(function () {      $(this).toggleClass('walkRows');     });    }); </script>

 Example of encyption-decryption using DES  ---------------------------------------------------------- package com.example.des; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.crypto.Cipher; import javax.crypto.CipherInputStream; import javax.crypto.CipherOutputStream; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; public class CipherExample {     public static void main(String[] args) {         try {             String key = "y1$ab??x";            // your key , needs to be at least 8 characters for DES                         FileInputStream fis = new FileInputStream("Ori...

GWT: User Service RPC call failed: 500 The call failed on the server Solution: If you are using objectify then make sure that you have added it's jar file ( objectify-2.2.1.jar ) into WEB-INF/lib as well as you have put this file in classpath (using java build path in case of eclipse) Also don't forget to include: <inherits name="com.googlecode.objectify.Objectify" /> in your project-name.gwt.xml file.