What is the difference between ‘function declaration’ and ‘function expression’?
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What are different types of scope chain available in javascript?
Difference between window.onload and onDocumentReady?
What makes something a function?
What are undeclared and undefined variables?
hi i want validations for two drop down lists. when user enter to second list by skipping first list alert box should appear. <HTML><HEAD> <TITLE>drop down validation</TITLE> <script type="text/javascript"> function validateForm(){ if(document.ItemList.Item.selectedIndex==0) { alert("Please select item from first list."); document.ItemList.Item.focus(); return false; } return true; } </SCRIPT> </HEAD> <BODY> Please choose an item from the drop down menu: <form name="ItemList" method="post" action="asp.html" onsubmit="validateForm()"> <table width="100%" border="0"> <tr> <td width="135">Choose a username: </td> <td> <select name="Item"> <option value selected> SELECT </option> <option value>Apples</option> <option value>Oranges</option> </select> <table width="100%" border="0"> <tr> <td width="135">Choose a username: </td> <td> <select name="Item" onclick="validateForm()"> <option value selected> SELECT </option> <option value>Apples</option> <option value>Oranges</option> </select> <input type="submit" name="Submit" value="Submit"> </td></tr></table></form> </BODY> </HTML> please any body help me thanks
Does apple use javascript?
Explain javascript closures by example.
java pgm for compare two vesion and print the greatest version on the console. e.g: like 1.4.2 and 1.5.2 biggest is 1.5.2 1.2.5 and 1.2.8 biggest is 1.2.8
What does => mean in node js?
Explain the difference between call() and apply()?
How do we add javascript onto a web page?
What does dynamic component in javascript contain?