Hi

I am currently learning javascript and I came across this exercise question:

c




var numbers = [-19, -7, -55, 78, 54, 60, -53, 35, 56, 42, 20, 77, 93, -41, -24, -60, 7, 86, 14, -99];
alert (secondLargest(numbers));
alert (reverse("CSY2028"));

function secondLargest(num){
return 0;

Anshul

• Jul 1st, 2019

Code
span style="color: #3366CC;">"""CSY2028"));
 

Oleg

• Dec 5th, 2014

Here is it.

Code
span style="color: #3366CC;">"""CSY2028"));
 

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Swamy Karnam

 Profile Answers by Swamy Karnam Questions by Swamy Karnam

• Jul 23rd, 2015

Rejeevrm, thanks

RAJEEVRM

 Profile Answers by RAJEEVRM Questions by RAJEEVRM

• Sep 12th, 2008

//Javscript code pagination.js file===========function Pager(tableName, itemsPerPage) {    this.tableName = tableName;    this.itemsPerPage = itemsPerPage;  &nb...

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What are the three ways of redirecting a web page logincheck.php to logged.php using1. HTML2. JavaScript3. PHP

arunkarnati

 Profile Answers by arunkarnati Questions by arunkarnati

• Oct 1st, 2014

1. HTML: You cant redirect a page using HTML 2. JavaScript: window.location = "logged.php" OR window.location.href = "logged.php" OR location.href = "logged.php" Just so you know if you want to redir...

kedarPhp

 Profile Answers by kedarPhp Questions by kedarPhp

• Sep 2nd, 2010

At the starting of the logincheck.php page you can add the javascript code as follow

Code
<script language='javascript''login.php''login.php''login.php';
</script>
<?php
exit();  //write the exit to exit the current php page execution
?>

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jamesjack

• Jul 25th, 2013

Using JavaScript you can easily insert data in database

keats

 Profile Answers by keats Questions by keats

• Jun 26th, 2008

Using J Query

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Raji

• Feb 16th, 2013

Explain about session in detail with example

Atul

• Dec 7th, 2006

Yup the comment is right. HTTP is a stateless protocol so we use session to identify the user.

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How can i print the numbers in descending order without using looping structure in php/javascript

Satya

• Nov 15th, 2012

Code
span style="color: #0000ff;">"").reverse().join("");
}

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Ranjan Kumar

• Sep 22nd, 2011

Code
span style="color: #0000ff;">"ok")
}
 

salijaffar

 Profile Answers by salijaffar Questions by salijaffar

• Feb 27th, 2009

Just write the name of the function and a pair of small brackets then semi-colon after it.example.functionName();

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ram

• Aug 25th, 2011

Document.forms[0].MyField

Cool Swadi

 Profile Answers by Cool Swadi Questions by Cool Swadi

• Dec 30th, 2009

You can use either 1. document.getElementById("").valueor2. document.forms[0]..value

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Read Best Answer

Editorial / Best Answer

bicu  

 Profile Answers by bicu Questions by bicu

• Member Since Sep-2005 | Feb 2nd, 2006

---

First of all, here is the javascript function that tests if an email address is valid.
It checks for a lot of things: to see if the email contains a "@" sign and a dot, checks to see if the @ is before the dot, and so on.

<script>
function isMail(str)
{
   var at="@";
   var dot=".";
   var lat=str.indexOf(at);
   var lstr=str.length;
   var ldot=str.indexOf(dot);
   if (str.indexOf(at)==-1) return false;
   if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) return false;
   if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) return false;
   if (str.indexOf(at,(lat+1))!=-1) return false; if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) return false;
   if (str.indexOf(dot,(lat+2))==-1) return false;
   if (str.indexOf(" ")!=-1) return false;
   return true;
}

// the next function will be used to validate the form. I made this as a separate function because you might want to validate more fields.
function validate_form()
{
   if (!isMail(document.form1.mail.value))
   {
      alert("Please enter a valid email address");
      document.form1.mail.focus();
      return false;
   }
   // if the value entered is not a valid email address, 
   // we show a message, focus on the field and return false.
   // returning false will make sure the form is not submitted

   // if we got here, it means the email address is valid
   return true;
   // return true means that the form is submitted.
}
</script>

After placing this function in the code, here is what you need to put in the form.

Let's say the form only has the email address and a submit button.

<form action="/" method="post" onsubmit="return validate_form()" name="form1">
<input type="text" name="email" value="">
<input type="submit" name="submit_button" value="continue">
</form>

Ravi Maggon

 Profile Answers by Ravi Maggon Questions by Ravi Maggon

• May 16th, 2011

<html>   <head>     <script type="text/javascript">   function check()    {     var filter=/^[a-zA-Z0-...

SwapnilSwapnil

 Profile Answers by SwapnilSwapnil Questions by SwapnilSwapnil

• Sep 7th, 2009

There are many varieties of email validation. This one is simple, but effective.function isValidEmail(str) {   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0); }

Improve Answer

Write a one line code to render HTML inside a DIV element.

hari_nowayout

 Profile Answers by hari_nowayout Questions by hari_nowayout

• Mar 25th, 2011

In case of html, this can be done by document.getElementByID("divname").innerHTML("write any html tags u want here ");in case of JQuery, it is done by $("#divname").html("any html");

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Write a code to get the text box data and to check each and every char?

vasanth.kvj

 Profile Answers by vasanth.kvj Questions by vasanth.kvj

• Nov 23rd, 2009

function numvalid(a) {  var numStr="1234567890"; var thisChar; var counter=0; for(var i=0; i < a.length; i++) { thisChar=a.substring(i,i+1); if(numStr.indexOf(thisChar...

princesh

 Profile Answers by princesh Questions by princesh

• Nov 18th, 2008

Read the input textCheck the length of the string Substract the length by one And then keeping doing this till end of the string.

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How to validate website address using javascript? User should not be allowed to enter special characters except hyphen(-).

anjumanohar

 Profile Answers by anjumanohar Questions by anjumanohar

• Jul 17th, 2009

function ValidateWebAddress(field,alerttext){with(field){var companyUrl =value; var RegExp = /^(([w]+:)?//)?(([dw]|%[a-fA-fd]{2,2})+(:([dw]|%[a-fA-fd]{2,2})+)?@)?([dw][-dw]{0,253}[dw].)+[w]{2,4}(:[d]+...

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How and in what ways does JavaScript differ from JScript?

imedvedeva

 Profile Answers by imedvedeva Questions by imedvedeva

• Feb 26th, 2009

The biggest difference now between Javascript and JScript are all of the additional commands that JScript supports that allow access to activeX and the local computer. These commands are intended for ...

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How to redirect a page using JavaScript

brijbhushansh

 Profile Answers by brijbhushansh Questions by brijbhushansh

• Oct 13th, 2008

Window.location="filename"

chenw2000

 Profile Answers by chenw2000 Questions by chenw2000

• Aug 2nd, 2008

Use location.href = "new page URL"

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designersub

 Profile Answers by designersub Questions by designersub

• Sep 2nd, 2008

Javascript is client side language and Java is serverside language

Divya

• Nov 22nd, 2007

Java script does support inheritance. It is an object oriented language, not object based

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designersub

 Profile Answers by designersub Questions by designersub

• Sep 2nd, 2008

<script language="javascript"> function noClick(e) {  if (navigator.appName == 'Netscape' && e.which == 3) {      alert("no righ...

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IRS786

 Profile Answers by IRS786 Questions by IRS786

• Aug 11th, 2008

for example form validation:<html><head><script type="javascript">function formvalidation(form){if (nonempty(form.req1)){if (nonempty(form.req2)){return true;}}return false...

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raghavakrao

 Profile Answers by raghavakrao Questions by raghavakrao

• Aug 9th, 2008

By disabling right click we can restrict user not to copy webpage sourcecode.

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Rajanikanththota

 Profile Answers by Rajanikanththota Questions by Rajanikanththota

• Jul 24th, 2008

Var reg = /^([A-Za-z0-9_-.])+@([A-Za-z0-9_-.])+.([A-Za-z]{2,4})$/; var address = document.form1.email.value; if(reg.test(address) == false) { alert('Invalid Email Address'); document.form1.email.focus(); return false; }

basetutor

 Profile Answers by basetutor Questions by basetutor

• May 10th, 2007

Simply cut and paste the below code into the <body> section of your page. Itcontains a form with one box that is checked for "email validity". You can add in more form elements into th...

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How to implement timer control in JavaScript

vijayan.nat

 Profile Answers by vijayan.nat Questions by vijayan.nat

• Jul 22nd, 2008

Set Timedout("alert('5 seconds')",5000);will display display alert box after 5 seconds

rakeshingle

 Profile Answers by rakeshingle Questions by rakeshingle

• Jul 7th, 2008

Using setTimeout() function u can implement timer in javascript.

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