JavaScript - Verify Queen Attack
Hello to everyone!
This is my first project in javascript and i need some help. I am using an 8*8 chess board with 8 queens placed by the user .Verify that they do not attack each other ,basically this means that there aren't two queens on the same line/column and diagonal and display a message box with the info. thanks guys! Similar TutorialsHi, Is it possible in Javascript to verify a range of IP's for open port 80 and show as a hiperlink? The ideia is similar to ip scanners but it's for a web spider... Thanks Reply With Quote 01-11-2015, 01:04 PM #2 Philip M View Profile View Forum Posts Supreme Master coder! Join Date Jun 2002 Location London, England Posts 18,371 Thanks 204 Thanked 2,573 Times in 2,551 Posts Not possible IMO. Javascript cannot access or interact with the operating system. All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit. Shouldn't this work? It's letting the form submit to the next page when I add in this if statement: Code: var first = document.forms["contact1"].elements["name"].value; else if (!preg_match("/^[a-z]$/i", first)) { alert("Please enter only letters for your first name"); return false; } I'm trying to verify todays date against my input date, using a check value function, but for some reason when it comes to a day over 9 like 12/10/2009 or 12/20/2009 looks like is only recognizing the first number 12/1/2009 and 12/2/2009 and getting my alert back as to choose a future date, this is my code, any help would be greatly appreciated: var currentTime = new Date() var month = currentTime.getMonth() + 1 var day = currentTime.getDate() var year = currentTime.getFullYear() function checkValues() { if (owt8.dayr.value <=month+'/'+day+'/'+year ) { alert("Please enter a future date!"); return false; } owt8.submit(); alert("Your request has been submited") window.close() } long story short, I do work for a church, a charity asked me to fix some errors at their web site...1 problem arose and JavaScript is not my strong suite..they have an newsletter request form, just enter your email and your on their newsletter list, as you can see from the code below there is a problem, no valid email verify routine, if you just enter a space in the form, it will accept the info and send a blank request to the charity where an email addie should be... no clue how to fix, as I said javascript is not something I do at all....any help appreciated. kenrich ======================= <script type="text/javascript"> $(function(){ $("#rform").submit(function(){return false;}); $("#rsubmit").click(function(){ if($("input#s").val() != "" && $("input#s").val() != 'Enter Email Address'){ $.get("/rsignup.php?email="+$("input#s").val(), function(data){ $("#rdiv").html(data).css("margin-top","15px"); }); } else { alert('Please enter your email address to subscribe'); } }); }); </script> <!-- BEGIN Form --> <div style="text-align: left;margin: 20px 0 -10px 10px;font-weight:bold;">Email Newsletter:</div> <div id="newsletterdiv" style="height:25px;"> <form name="optin" action="#" onsubmit="return false;" method="post" style="margin-bottom:2;" id="newsletterform"> <input type="hidden" name="vff" value="103"> <input type="hidden" name="vpp" value="i"> <div> <input value="Enter Email Address" onfocus="if (this.value == 'Enter Email Address') {this.value = '';}" onblur="if (this.value == '') {this.value = 'Enter Email Address';}" name="ea" id="s" type="text"> <input id="newslettersubmit" value=" " type="submit" name="go"> </div> </form> </div> <!-- END Form --> |