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JavaScript - Short Syntax Question
Similar TutorialsI have an alert I'm using over in Salesforce to remind sales reps to use a special terms document when quoting. Problem is, the alert is going off for ALL accounts, not just "Account1" and "Account2". Is this line incorrect in syntax or something? if ((isstatus == "Proposal/Price Quote") && (acct == "Account1", "Account2")) Thanks all. This forum has been very helpful for me in the past so this was my first stop! Jeremy Code: <html>
<head>
<script type="text/javascript" language="javascript" src="/js/functions.js"></script>
<script type="text/javascript" src="/soap/ajax/10.0/connection.js"></script>
<script type="text/javascript">
function throwalert()
{
var isstatus = "{!Opportunity.StageName}";
var acct = "{!Opportunity.Account}"
var msgg = "Please remember to use a special terms and conditions quote template when quoting this opportunity.";
if ((isstatus == "Proposal/Price Quote") && (acct == "Account1", "Account2"))
{
alert(msgg);
}
else
{
window.parent.location.replace = "{URLFOR($Action.Opportunity.View, Opportunity.Id,null,true)};"
}
}
</script>
</head>
<body onload="throwalert()";>
</body>
</html>
When using anonymous wrappers (I guess they are called like that), what does "()" part do at the end of the stack? An example: Code: (
function() {}
)
() //Here!
What does it do and how can we use it? The following code snippet: (this.inputArray is already defined and initialized prior to this code sequence) if(this.inputArray.length >= 0) { this.inputArray[this.inputArray.length] = new Object(); this.inputArray[this.inputArray.length].type = 'pcDisp'; this.inputArray[this.inputArray.length].data = a; } the first line in the code block should create a new array item and initialize it with the various assigments in the next lines. But Firefox complains "this.inputArray[this.inputArray.length] is not defined". This is very disconcerting because the code has to create array items with different data based on conditionals. So I must be able to automatically create new items as necessary. I thought that javascript had 'late binding', but maybe that doesn't apply here. So, does anyone have a clue for me? I am studying the javascript. I got following codes from json2.js but do not understand syntax of them. if (!this.JSON) { this.JSON = {}; } (function () { ... }()); For 2nd part, why there is () outsider function? and why these is () after function? Thanks a lot. My site will change color schemes when a user presses the button in the top left. I want to add a third theme though. I can't figure it out though. My html as relevent Code: <!--EXTERNAL FILES--> <link rel="stylesheet" type="text/css" href="main.css" /> <!--[if IE]><link rel="stylesheet" type="text/css" href="mainIE.css" /><![endif]--> <link id="altstyle" rel="stylesheet" type="text/css" href="main.css" /> <script type="text/javascript" src="main.js"></script> <!--STOP EXTERNAL FILES--> <title>Votillity.com</title> <!--CSS INTERNAL--> <!--CSS INTERNAL--> <!--JAVASCRIPT INTERNAL--> <!--JAVASCRIPT INTERNAL--> </head> <body onload="startTime()"> <img class="Zindexsty1" style="position: fixed; top: 0px; left: 0px;" src="http://votillity.com/VotillityLogo1.png" alt="VOTILLITY" /> <img class="Zindexsty2" style="position: fixed; top: 0px; left: 0px;" src="http://votillity.com/VotillityLogo2.png" alt="VOTILLITY" /> <button id="altstyact" class="button" style="position: fixed; top: 0px; left: 170px; width: 60px;">Theme</button> Javascript Code: //ALTERNATE STYLES
function changeStyle()
{
var obj1=document.getElementById('altstyact');
var obj2=document.getElementById('altstyle')
test=true;
obj1.onclick=function()
{
test==true?
(obj2.href='main2.css',obj1.firstChild.nodeValue='Classic',test=false):
(obj2.href='main.css',obj1.firstChild.nodeValue='Ice',test=true)
}
}
if(window.addEventListener)
{
window.addEventListener('load',changeStyle,false);
}
else
{
if(window.attachEvent)
{
window.attachEvent('onload',changeStyle);
}
}
//STOP ALTERNATE STYLES
I don't think you need the css's. If, however, I'm wrong just let me know. Keep in mind that the javascript is external. Here's my site if you need a better look Votillity Thank you Hello, In the below script syntax, a simple table converts Celsius degrees into Fahrenheit, using the For loop and integrating it into a table. Code: <html>
<head>
<title>Celsius-Fahrenheit Converter</title>
</head>
<body>
<table border=3>
<tr><td>CELSIUS</td><td>FAHRENHEIT</td></tr>
<script language="javascript">
for (celsius=0; celsius<=50; celsius=celsius+1)
{
document.write("<tr><td>"+celsius+"</td><td>"+((celsius*9/5)+32)+"</td></tr>");
}
</script>
</table>
</body>
</html>
My questions are about the following script inside the <td> tags: <td>"+celsius+"</td> <td>"+((celsius*9/5)+32)+"</td> 1) why is the script inside the above <td> tags placed between " " ? 2) why is the script inside the above <td> tags placed between + + ? Thanks a lot for your explanation to an absolute Javascript beginner...! Not sure if the root problem is a js load issue or rather css. Problem page is he http://arcangelmetalworks.com/pictures.php I've had success using the Lightbox2 module on several Drupal-based sites, but this is the first time I've handled the straight code and tried to drop it into a hand-coded site. Internet Explorer fails to draw the overlay div to the full page height. Firefox 3 performs as expected. The web site suggests setting the body margin and padding to zero, but those were set anyway and tweaking didn't help. Another suggestion was to stick initLighbox() into the body onload, but that function doesn't exist. Also tried initialize() and Lightbox.initialize(), but again it's claimed those functions don't exist. Looking into the code, however, initialize() is where the div height is calculated, I think. It should be noted that the lightbox still works on IE even when using one of these failed onload attempts. And I don't actually get IE to report any js error with the onloads - I have to rely on Firebug for that. Anyone have an idea of what I'm overlooking? I've spent too much time staring at code and coming up blank. Hi all! I am coding a page that has 6 buttons on it, from which one is the correct button (the target). I want to try and implement the following: 1) when a wrong button is clicked, the file "wrong.mp3" is played. It is less than a second long. 2) when the correct button is click, the file "right.mp3" is played. It too is less than a second long. The page then redirects/reloads. This is the code that I can't seem to get to work: Code: <script language="text/javascript">
.......
function blueClick( buttonLocation ) {
if(buttonLocation == blueLocation){ //determining if the correct button is clicked or not
var blueScore = localStorage.getItem("scoreBlue"); //this is retrieving the score (scoreBlue) from a previous game: lets say 5 and assigning it to blueScore
blueScore = (blueScore*1) +1; //this is incrementing the score, so now blueScore = 6
localStorage.removeItem("scoreBlue");
localStorage.setItem("scoreBlue", blueScore); //this is saving the score - 6 - to a localstorage var called scoreBlue
window.location.reload();
}
var thissound=document.getElementById(sound1); //since the wrong button was clicked, play the wrong.mp3 file
thissound.Play();
}
</script>
<body>
<embed src="wrong.mp3" autostart=false width=0 height=0 id="sound1" enablejavascript="true">
......
<img id="blue0" onclick="blueClick(0)" />
.....
</body>
Any ideas what I am doing wrong here? I've been trying to fix this for the past couple of hours but have no clue whats wrong. Any tips would be appreciated. Thanks! I'm trying to resolve a UPS zone from a zip code, here is my code: Code: <script type="text/javascript">
var zipcode=44657;<!-- Should be zone 5 -->
var zip=zipcode.substring(0,3);
alert(zip);
<!-- Zone chart made from Jacksonville FL zip 32216 on 8-5-2010 -->
var azone = new Array (4-5, 5, 6-7, 45, 9, 45, 10-13, 5, 14, 6, 15-18, 5, 19, 6, 20-29, 5, 30-33, 6, 34, 5, 35-51, 6, 52-53, 5, 54, 6, 55, 5, 56-59, 6, 60-89, 5, 100-128, 5, 129, 6, 130-223, 5, 224-225, 4, 226, 5, 227-253, 4, 254, 5, 255-259, 4, 260-261, 5, 262, 4, 263-265, 5, 266, 4, 267, 5, 268-289, 4, 290-296, 3, 297, 4, 298, 3, 299, 2, 300-306, 3, 307, 4, 308-312, 3, 313-316, 2, 317-319, 3, 320-323, 2, 324, 3, 325, 4, 326-329, 2, 330-332, 4, 333-337, 3, 338, 2, 339, 3, 341, 3, 342, 3, 344, 2, 346, 3, 347, 2, 349, 3, 350-359, 4, 360-361, 3, 362, 4, 363-364, 3, 365-367, 4, 368, 3, 369-397, 4, 398, 3, 399, 3, 400-409, 4, 410, 5, 411-418, 4, 420, 5, 421-427, 4, 430-470, 5, 471, 4, 472-475, 5, 476-477, 4, 478-496, 5, 497-505, 6, 506-507, 5, 508-516, 6, 520, 5, 521, 6, 522-539, 5, 540-566, 6, 567, 7, 570-575, 6, 576-577, 7, 580-581, 6, 582, 593, 7, 594-599, 8, 600-668, 5, 669-672, 6, 673, 5, 674-692, 6, 693, 7, 700-704, 4, 705-706, 5, 707-709, 4, 710-722, 5, 723, 4, 724-735, 5, 736, 6, 737, 5, 738-739, 6, 740-768, 5, 769, 6, 770-784, 5, 785, 6, 786-787, 5, 788, 6, 789, 5, 790-797, 6, 798-806, 7, 807, 6, 808-820, 7, 821, 8, 822-831, 7, 832-844, 8, 845-846, 7, 847, 8, 850-853, 7, 854, 8, 855-863, 7, 864, 8, 865-875, 7, 877, 6, 878-880, 7, 881-882, 6, 883, 7, 884, 6, 885, 7, 889-961, 8, 970-986, 8, 988-994, 8);
for (y=0;azone[y]=zip;y=y+2){
document.write (azone[y+1])
}
</script>
Can someone see my error? I'm a bit rusty at my javascript. I'm slowly scraping away errors from a page im working on and ive found this forum to be very helpful- down to one more that i wanted to post on. sample page is he http://darrenlasso.com/freelance/loo.../lookbook.html Works fine in most all browsers except for IE8- ive even had to include built in ie7 compatibility to get it to work at all. Problem is most likely associated with my js, which is: Code: function ShowPage(frame)
{
frames[0].location = frame+'.html'
}
and html is: Code: <div id="thumb1"><a onmouseover="ShowPage('frame1')"onclick="ShowPage('frame1')" rel="nofollow" target="mainbox"></a></div>
<div id="thumb2"><a onmouseover="ShowPage('frame2')"onclick="ShowPage('frame2')" rel="nofollow" target="mainbox"></a></div>
<div id="thumb3"><a onmouseover="ShowPage('frame3')"onclick="ShowPage('frame3')" rel="nofollow" target="mainbox"></a></div>
etc etc.. Which is just something i found online - probly isnt right for what im trying to accomplish. If you go to the site- you navigate by hovering over/clicking the images at the top and that loads a new page into the iframe below. Id like to be able to fix the errors and get it working without having to force ie7 compatibility if possible too. Any help is much appreciated I'm trying to find a way to display a future date in short format (as an expiration date) with Javascript. I've figured out how to do it with long format, but have no idea how to convert it and I'm not great with Javascript. Here is code that I found on another forum and modified: Code: <!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<!doctype html>
<head>
<title>Expires</title>
</head>
<body>
<script>
var myDelayInDays=6, myDate=new Date();
myDate.setDate(myDate.getDate()+myDelayInDays);
document.write('Expires: ' + myDate.toLocaleDateString());
</script>
</body>
</html>
</body>
</html>
Which displays: "Expires: Monday, May 21, 2012" I would like it to display: "Expires: 05/21/2012" Can anyone help?! I'm a PHP guy and haven't used jQuery much. I have a script I found in a book and I am trying to get working and am having trouble. It's a drop down list. I am using it in place of an HTML select box, so I want to pass the value selected from the list along with the form in a hidden field. My question is how do I extract the value out of the JS function and get it into the hidden field? Code: $(document).ready(function() {
createDropDown();
$(".dropdown dt a").click(function(event) {
event.preventDefault();
var dropID = $(this).closest("dl").attr("id");
$("#" + dropID).find("ul").toggle();
});
$(document).bind('click', function(e) {
var $clicked = $(e.target);
if (! $clicked.parents().hasClass("dropdown"))
$(".dropdown dd ul").hide();
});
$(".dropdown dd ul a").click(function() {
var dl = $(this).closest("dl");
var dropID = dl.attr("id");
var text = $(this).html();
var source = dl.prev();
$("#" + dropID + " dt a").html(text);
$("#" + dropID + " dd ul").hide();
source.val($(this).find("span.value").html())
});
});
function createDropDown() {
var selects = $("select.dropdown_value");
var idCounter = 1;
selects.each(function() {
var dropID = "dropdown_" + idCounter;
var source = $(this);
var selected = source.find("option[selected]");
var options = $("option", source);
source.after('<dl id="' + dropID + '" class="dropdown"></dl>');
$("#" + dropID).append('<dt><a href="#">' + selected.text() + '<span class="value">' + selected.val() + '</span></a></dt>');
$("#" + dropID).append('<dd><ul></ul></dd>');
options.each(function() {
$("#" + dropID + " dd ul").append('<li><a href="#">' + $(this).text() + '<span class="value">' + $(this).val() + '</span></a></li>');
});
idCounter++;
});
}
i get this error when ever i try to process the form: There was a SyntaxError: Unexpected token < error due to an parsererror condition. Javacsipt/jquery: $(document).ready(function(){ $("#slide").click(function(){ $("#inner-wrapper").slideToggle(); }); $('form #response').hide(); $('#submit').click(function(e){ e.preventDefault(); var valid = ''; var required = ' is required'; var name = $('form #name').val(); var email = $('form #email').val(); var fname = $('form #fname').val(); var femail = $('form #femail').val(); var message = $('form #message').val(); var honeypot = $('form #honeypot').val(); var humancheck = $('form #humancheck').val(); //Error checking if (name == '' || name.length <=2) { valid = '<p>Your name' + required + '</p>'; } if (!email.match(/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/)) { valid += '<p>Your email' + required + '</p>'; } if (fname == '' || fname.length <=2) { valid += '<p>Your friend\'s name' + required + '</p>'; } if (!femail.match(/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/)) { valid += '<p>Your friend\'s email' + required + '</p>'; } if (message == '' || message.length <=5) { valid += '<p>A message' + required + '</p>'; } if (honeypot != 'http://') { valid += '<p><center>Spambots are not allowed.</center></p>'; } if (humancheck != '') { valid += '<p><center>A human user' + required + '</center></p>'; } if (valid != '') { $('form #response').removeClass().addClass('error') .html('<strong>Please correct the errors below.</strong>' + valid).fadeIn('2000'); }else { $('form #response').removeClass().addClass('processing').html('<center>Working...</center>').fadeIn('2000'); var formData = $('form').serialize(); submitForm(formData); } }); }); function submitForm(formData) { $.ajax({ type: 'POST', url: 'emailfriend.php', data: formData, dataType: 'json', cache: false, timeout: 7000, success: function(data) { $('form #response').removeClass().addClass((data.error === true) ? 'error' : 'success') .html(data.msg).fadeIn('fast'); if ($('form #response').hasClass('success')) { setTimeout("$('form #response').fadeOut('slow')", 5000); } }, error: function(XMLHttpRequest, textStatus, errorThrown) { $('form #response').removeClass().addClass('error') .html('<p>There was a <strong>' + errorThrown + '</strong> error due to an <strong>' + textStatus + '</strong> condition.</p>').fadeIn('fast'); }, complete: function(XMLHttpRequest, status) { $('form')[0].reset(); } }); }; php file PHP Code: <?php error_reporting(E_ALL ^ E_NOTICE); sleep(3); $name = stripslashes($_POST[name]); $email = stripslashes($_POST[email]); $fname = stripslashes($_POST[fname]); $femail = stripslashes($_POST[femail]); $message = stripslashes($_POST[message]); $honeypot = $_POST[honeypot]; $humancheck = $_POST[humancheck]; if ($honeypot == 'http://' && empty($humancheck)) { $error_msg = ''; $reg_exp = "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/"; if (!preg_match($reg_exp, $email)) { $error_msg .= "<p>A valid email is required</p>"; } if (!preg_match($reg_exp, $femail)) { $error_msg .= "<p>A valid email is required</p>"; } if (empty($name)) { $error_msg .= "<p/>Please provide your name</p>"; } if (empty($fname)) { $error_msg .= "<p/>Please provide your name</p>"; } if (empty($message)) { $error_msg .= "<p>A message is required.</p>"; } if (!empty($error_msg)) { $return['error'] = true; $return['msg'] = "<h3>Oops! Looks like you missed a few fields.</h3>".$error_msg; echo json_encode($return); exit(); }else { $return['error'] = false; $ref=@$HTTP_REFERER; /////Message at the top of the page showing the url//// $header_message = "Hi $fname \n Your friend $name requested you to visit this page at \n $ref \n"; /// Body message prepared with the message entered by the user //// $body_message =$header_message."\n".$message."\n"; // IP address of visitor is added to message, you can remove it if not required.// $body_message .="\n Sent from http://www.separatethescams.com"; //// Mail posting part starts here ///////// $headers=""; //$headers = "Content-Type: text/html; charset=iso-8859-1\n".$headers; // Un comment the above line to send mail in html format $headers4=$email; // Change this to change from address $headers.="Reply-to: $headers4\n"; $headers .= "From: $headers4\n"; $headers .= "Errors-to: $headers4\n"; $subject="$name visit this site!"; mail($femail,$subject,$body_message,$headers); $return['msg'] = " <b><p><center>Thanks for spreading the word! :) " . "<font color='red'>" .$name . "</font>" . " </p>" . "</b>" . "</center>"; echo json_encode($return); } }else { $return['error'] = true; $return['msg'] = "<h3><center>0ops there was a problem submitting the data. Please try again!</center></h3>"; echo json_encode($return); } ?> html file <html> <head> <link rel="stylesheet" href="ajaxform/form.css" type="text/css" media="screen"/> </head> <body> <div id="wrapper"> <h3 id="slide">Email This Page To a Friend</h3> <hr></hr> <div id="inner-wrapper"> <form id="my_form" action="ajaxform/emailfriend.php" method="post"> <div id="response"><!--This will hold error message and response from server. --></div> <div class="inputs"> <p> <label>Name   ; </label> <input name="name" type="text" placeholder="Your Name" class="required" id="name" size="30" /> </p> </div> <div class="inputs"> <p> <label>Email &nbs p; </label> <input name="email" type="text" placeholder="Your Email" class="required" id="email" size="30" /> </p> </div> <div class="inputs"> <p> <label>Friend's Name </label> <input name="fname" type="text" placeholder="Friend's Name" class="required" id="fname" size="30" /> </p> </div> <div class="inputs"> <p> <label>Friend's Email </label> <input name="femail" type="text" placeholder="Friend's Email" class="required" id="femail" size="30" /> </p> </div> <div class="inputs"> <p> <label id="msg">Message </label> <textarea name="message" cols="24" rows="5"type="text" placeholder="Message To Friend" class="required" id="message"></textarea> </p> </div> <div class="button"> <input name="submit" type="submit" id="submit" value="EMAIL PAGE" /> </div> <div class="inputs"> <input type="hidden" name="honeypot" id="honeypot" value="http://" /> <input type="hidden" name="humancheck" id="humancheck" class="clear" value="" /> </div> </form> </div> <!-- inner-wrapper end --> </div> <script type="text/javascript" src=" https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <script type="text/javascript" src="ajaxform/ajax_submit.js"></script> </body> </html> I keep getting myself into trouble because I tend to use my Java reference when coding Javascript, and of course Javascript doesn't support all Java functions. I've just discovered that apparently Javascript doesn't support the trim() function. But curiously, if I code it as: mystring.trim() then Firefox will handle it without any errors. (I haven't actually checked to see if whitespace is removed from around the string.) But when I code it like this: trim(mystring) then firefox gives an error. I've also found a couple of situations where I've made syntax errors, and Firefox gives no error message. This makes debugging tricky, since the only resource I have available is Firefox's Error Console. Safari has no error reporting whatsoever, AFAIK. MSIE seems to find some errors that Firefox misses, but I don't have MSIE on my main computer, so it's a nuisance to use. As a hobbyist, I have no budget to buy Javascript development tools. Is there something free available that does a better job of finding errors? Can someone explain to me the differences between the following code snippets? Mainly i don't understand the purpose of using prototype and not sure if there is a functional difference between the syntax of declaring functions. Code: var myObj = function () {
this._myInt = 1;
}
myObj.prototype = {
myNewFunction: function() {
this._myInt = 2;
}
}
VERSUS Code: var myObj = function () {
this._myInt = 1;
function myNewFunction(){
this._myInt = 2;
}
}
Can someone point where i'm going wrong? I want to evaluate the values of 'miles' to be >=0 and 'putime' to between 0 and 24 only. Code: <script type = "text/javascript">
function TaxiFare() {
// calculates taxi fare based upon miles travelled
// and the hour of the day in military time (0-23).
var baseFare = 2.50;
var costPerMile = 2.00;
var nightSurcharge = 0.50; // 8pm to 6am, every night
var milesTravelled = Number(document.getElementById("miles").value);
var pickupTime = Number(document.getElementById("putime").value);
var cost = baseFare + (costPerMile * milesTravelled);
// add the nightSurcharge to the cost if it is after
// 10pm or before 6am
if (pickupTime >= 22 || pickupTime < 6) {
cost += nightSurcharge;
}
if((document.getElementById('miles').value>=0)&&(document.getElementById('putime').value>=0||<=24) {
alert("Your taxi fare is $" + cost.toFixed(2));
}
else{return 0;}
}
</script>
On this page http://jimpix.co.uk/ecards/262-no-words.html I get this Javascript error in IE6: Code: Line: 5 Character: 1 Code: 0 Error Message: Syntax error URL: http://jimpix.co.uk/ecards/262-no-words.html I'm using the DebugBar add in for IE (http://www.debugbar.com/) The error message in DebugBar is this: http://jimpix.co.uk/junk/error.png And the view-source of the page is he http://jimpix.co.uk/junk/source-code.png I don't get the error in Firefox 3 or IE7. I can't work out how to fix it. Any advice would be much appreciated. Thanks! Code: out += (out ? rogueArray[14] : rogueArray[13]) + arrayItem + ((vanWilder[arrayItem] !== null) ? = + encodeURIComponent(vanWilder[arrayItem]) : rogueArray[13]); There is supposedly a syntax error here on the line up until [arrayItem in Dreamweaver. Any help? I just found this forum! I'm glad because I wanted to ask some javascript questions before. There was a question at work before at why one would use the following: if (a=='1') ... or if ('1'==a) ... Is there any kind of advantage of using one of the other? Thanks for any response! |
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