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Categories >> Software >> Scripts >> JavaScript


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What is constructor?
 Question Submitted By :: Susheel Kumar
I also faced this Question!!     Rank Answer Posted By  
  Re: What is constructor?
# 1
A constructor is a special type of member function for
automatic initialization of an object.
when ever an object is created the constructor will be
executed automatically.
the name of constructor same as that of its class.the
constructor is declared with no return type,not even void.
constructor should be declared in the public section most
of the time.
Is This Answer Correct ?    4 Yes 0 No
Susheel Kumar

Other JavaScript Interview Questions
  Question Asked @ Answers
i want to display time using hidden variable in a page,but when i click button that page that hidden variable loosing its value.i m sending the code also. <script type="text/javascript" language="javascript"> var tick=0; window.onload = function() { //debugger if(document.getElementById("hdnTicker").value != "") tick = parseInt(document.getElementById("hdnTicker").value); setInterval("Timer()",1000); } function Timer() { //debugger document.getElementById("hdnTicker").value = tick++; //alert(document.getElementById("hdnTicker").value); document.getElementById("lblTimeSpent").innerHTML = "0." + tick; if(tick == 30) { //message or redirect to result window alert('time is out'); //clearTimeout(); } } </script> <form id="form1" runat="server"> <div> <table> <tr> <td> <asp:Label ID="lblTimeSpent" runat="server" Visible="true" ForeColor="Blue" ></asp:Label> </td> <td> <%-- <asp:textbox EnableViewState="true" id="hdnTicker" runat="Server" style="visibility:hidden"></asp:textbox>--%> </td> </tr> <tr> <td> <asp:Button ID="btn" runat="server" Text="hi" OnClick="btn_Click" Height="30px" Width="60px" /> </td> </tr> </table> <%--<asp:HiddenField ID="txt" runat="server" Visible="true" />--%> </div> </form> <input type="hidden" id="hdnTicker" name="hdnTicker" enableviewstate="true" runat="server" />   1
What are the different ways in which we can use the link tag ? Illustrate with an example. Is it possible to link a file with another file on a different file server ? If yes, how ?   1
what is the purpose of using jsp?   1
Write a program to check whether a given number is a palindrome or not?   4
What is negative infinity? Satyam 2
How to go next field without filling the text? Which function should we use?   4
write a program to generte a harmonic series 1+1/2+1/3+1/4+1/5 upto 15 terms.   1
Can you call a Java Applet using a JavaScript function? Satyam 2
program showing string concatenation?   4
can any one tell me the syllebus for java certification   2
Is java is a fully object object oriented language?   2
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