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JavaScript - How To Use/what To Do With Return $value; In Js
i have this in my javascript code but have no idea on how a returned value works/where does it return to???? what do i do/or can i do with a value that gets returned???
i am asking this so i can learn on how to use it cos i am new to all this and dont know how it works...please show/explain to me please? thanks here my full code: PHP Code: <?php use_stylesheets_for_form($form) ?> <?php use_javascripts_for_form($form) ?> <html> <head> <script type="text/JavaScript"> function refreshPage(s) { window.location.reload(); if((s.options[s.selectedIndex].value) = "zed-catcher") { var $index = s.selectedIndex; var $value = s.options[$index].value; alert (s.selectedIndex); alert ($value); window.location.reload(); [COLOR="Red"]return &value; //where does it return to ???? how/what to do with a return value???[/COLOR] } } </script> </head> </html> <body> <form action="<?php echo url_for('adminservice/'.($form->getObject()->isNew() ? 'create' : 'update').(!$form->getObject()->isNew() ? '?id='.$form->getObject()->getId() : '')) ?>" method="post" <?php $form->isMultipart() and print 'enctype="multipart/form-data" '?>> <?php if (!$form->getObject()->isNew()): ?> <input type="hidden" name="sf_method" value="put" /> <?php endif; ?> <table > <tfoot> <tr> <td colspan="2"> <?php echo $form->renderHiddenFields(false) ?> <a href="<?php echo url_for('adminservice/index') ?>">Back to list</a> <?php if (!$form->getObject()->isNew()): ?> <?php echo link_to('Delete', 'adminservice/delete?id='.$form->getObject()->getId(), array('method' => 'delete', 'confirm' => 'Are you sure?')) ?> <?php endif; ?> <input type="submit" value="Save" /> </td> </tr> </tfoot> <tbody> <?php echo $form->renderGlobalErrors() ?> <tr> <th><?php echo $form['name']->renderLabel() ?></th> <td> <?php echo $form['name']->renderError() ?> <?php echo $form['name']?> </td> </tr> <tr> <th><?php echo $form['logo_url']->renderLabel() ?></th> <td> <?php echo $form['logo_url']->renderError() ?> <?php echo $form['logo_url'] ?> </td> </tr> <tr> <th><?php echo $form['call_center_number']->renderLabel() ?></th> <td> <?php echo $form['call_center_number']->renderError() ?> <?php echo $form['call_center_number'] ?> </td> </tr> <tr> <th><?php echo $form['catcher_id']->renderLabel(); $catcher_id = $form->getObject()->getCatcherId(); $catcher = LpmCatcherPeer::getByCatcherId($catcher_id); $catcher_name = $catcher->getName(); ?></th> <td> <?php echo $form['catcher_id']->renderError() ?> [COLOR="Red"]<select name="services" onchange="refreshPage(this.form.services)">[/COLOR] <?php $catcher_names = LpmCatcherPeer::getByAllNames(); foreach($catcher_names as $row) { ?> <option value="<?php echo $row->getName()."/".$row->getId();?>" <?php if($row->getName() == $catcher_name) echo ' selected="selected"'; ?> ><?php echo $row->getName();?></option> <?php } [COLOR="Red"]if ($row->getName() == "zed-catcher") //just thought with the return in my java script i can pass the newley selected value back to here and if it meets the if i echo these lines?? { echo $form['service_code']->renderLabel(); echo $form['service_code']->renderError(); echo $form['service_code']; } [/COLOR] ?> </select> </td> </tr> <tr> <th><?php echo $form['price_description']->renderLabel() ?></th> <td> <?php echo $form['price_description']->renderError() ?> <?php echo $form['price_description'] ?> </td> </tr> </tbody> </table> </form> </body> thanks! Similar TutorialsI don't understand the logic of Break, Return False, Return True. It was never really covered in our college class, and I see everyone using it. I got an A in the class, if that 'proves' that I really tried to apply myself. NOTE: I understand what the function is doing. I just don't understand WHEN to use break, return false or return true if the the translator can determine the conditional statements. PHP Code: function submitForm(){ var ageSelected = false; for (var i=0; i<5; ++1){ if (document.forms[0].ageGroup[i].checked == true) { ageSelected = true; break; } } if (ageSelected == false){ window.alert("You must select your age group"); return false; } else return false; } if the the translator can determine the conditional statements, why not write it like this: PHP Code: function submitForm(){ var ageSelected = false; for (var i=0; i<5; ++1){ if (document.forms[0].ageGroup[i].checked == true) { ageSelected = true; break; // what's the point for the 'break'? Won't the rest of the code be ignored since it passed the first condition? } } if (ageSelected == false){ window.alert("You must select your age group"); return false; } // why not leave the last else out? is it just a 'safety' catch, in case something other than true or false is inputted? else return false; // what's the point? } Questions: Why use return true, if the translator knows it's ture? Why use "return false" if the translator knows it's false and the alert window has already gone up? why not use "break" to stop the code? Why use the "return false" at the end "else" statement? Hi room, Hey, I opened up the source code for this page in google chrome and since i'm learning javascript, i wanted see if i could "read" it and figure out what was going on. I'm am having the hardest time understanding "return false" and "return true". Could someone step me through this via interpreting this code (in bold typeface): Code: var DefaultValue = 'Search';
function clearSearch() {
if (document.searchForm.q.value == DefaultValue) {
document.searchForm.q.value = '';
}
}
function validateSearchHeader() {
if ( document.searchForm.q.value == '' || document.searchForm.q.value.toLocaleLowerCase() == DefaultValue.toLocaleLowerCase() ) {
alert('Please enter at least one keyword in the Search box.');
document.searchForm.q.focus();
return false;
}
return true;
}
Thanks! i'm trying to get some information with this code from my database: Code: function getTableSize(tableName){
db.transaction
(
function(tx)
{
tx.executeSql
('SELECT * FROM '+ tableName,[] , function(tx, r)
{
return r.rows.length;
}
);
}
);
}
but it doesnt work and i cant figure why what i want is that this function return the table size to one variable in another function...something like: Code: var groupTableSize = getTableSize('groups');
Hello, How can this be made to return confirmation? <form id="score_form" method="post" action="addscore.php"><input id="score" name="score" value="" type="hidden"><img id="collect" style="cursorointer;height: 37px; width: 100px; margin-top: 13px;" src="./collectlive.gif" onclick="collect_points();"></form> Letsay the confirmation window would say"ARE YOU SURE" i achieved to make a chain: Code: function getId(id) {
id_elem = document.getElementById(id);
return {
color:function(e){
id_elem.style.color = e;
}
};
}
so this can be getId("test").color("red"); but what happens if i want to do that? Code: function getId(id) {
id_elem = document.getElementById(id);
return id_elem;
return { ????......
how can i chain if i use return in the first place? Im working on a function where i need to return the active elements ID. the element will have class="main" id="1" onmouseover="showSub()"> Would someone be able to write me a simple function which simply puts the elements ID number in an alert box? I can figure out the rest i need from that . Thanks, Tom I have a javascript that takes information from a form and recompiles that information into a readable shift report. The problem I am having is with returns in the textareas. I tried: Code: theReport = theReport.replace("
","<br>"
but that space puts the rest of the var on a different line and screws with the results. How can I replace a return with <br>? I want the output to be this way Student: Doe, John eMail: jd@email.com Course ID: COIN-O70A.01 ----------------------- Can any one pls help me with the display. If I use alert instead of return then I works. But I need to display it in the document. Code: <html>
<head>
<title>Variable - Examples 1</title>
<script type="text/javascript">
function Student(firstName, lastName, email,courseID){
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.courseID = courseID;
}
Student.prototype = {
constructor : Student,
toString : studentInfo
};
function studentInfo(){
return this.firstName + "," + this.lastName + '\n'+ this.email + '\n' + this.courseID;
}
var student = new Student("Doe", "John", "Doeohn@gmail.com","COIN 70A.01");
</script>
</head>
<body>
<script type="text/javascript">
document.writeln(student.toString());
</script>
</body>
</html>
Have a jsp page with 10 editable fields and in last Add Button.Now when user edit a field from value 10 to 20(example)and click on Add .Value will be changed and focus will return to the same field.similarly for other fields.how to to .any code sample?
hi,i don't understand about the jquery basic example the code is below PHP Code: <html> <head> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $('p').addClass(function(n){ return 'par_' + n; }); }); }); </script> <style type="text/css"> .par_0 { color:blue; } .par_1 { color:red; } </style> </head> <body> <h1>This is a heading</h1> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button>Add classes to p elements</button> </body> </html> i want to understand about the how is work function(n){ in the function a and how work return function return 'par_' + n; thanks mate hi, i wanna get the value from javascript to php variable. here is my code, <html> <body> <select name="drop" size="10" onchange="drp_selectd_value(this)"> <option>One</option> <option>Two</option> <option>Three</option> <option>Four</option> <option>Five</option> </select> <?php echo "The PHP value".'<script>value_return();</script>'; $p='<script>y;</script>'; ?> </body> </html? <script> var x; var y=100; function drp_selectd_value(sdf) { x=sdf.value; alert("Value is : " +x); value_return(x); } function value_return(val) { alert("Second Function calling : "+val ); return val; } </script> This code does not working!!! How can i fix tis problem???I m expecting for the reply.. Thanks in advance Hi, i need some help with this if is possible. I make this dropdown: Code: <dl class="dropdown"> <dt><a><span>Select a Field</span></a></dt> <dd> <ul id="menu-tags-menu" class="menu"> <li id="menu-item-159" class="menu-item current-menu-item"><a href="http://myweb.com.ar/portfolio/">All Fields</a></li> <li id="menu-item-54" class="menu-item"><a href="http://myweb.com.ar/tag/branding/">Branding</a></li> <li id="menu-item-55" class="menu-item"><a href="http://myweb.com.ar/tag/print-design/">Print Design</a></li> <li id="menu-item-57" class="menu-item"><a href="http://myweb.com.ar/tag/web-design/">Web Design</a></li> <li id="menu-item-56" class="menu-item"><a href="http://myweb.com.ar/tag/ui-design/">UI Design</a></li> <li id="menu-item-52" class="menu-item"><a href="http://myweb.com.ar/tag/motion-graphics/">Motion Graphics</a></li> <li id="menu-item-53" class="menu-item"><a href="http://myweb.com.ar/tag/illustration/">Illustration</a></li> </ul> </dd> </dl> Working with jquery and this code: Code: $(document).ready(function() {
$(".dropdown dt a").click(function() {
$(".dropdown dd ul").toggle();
});
$(".dropdown dd ul li a").click(function() {
var text = $(this).html();
$(".dropdown dt a span").html(text);
$(".dropdown dd ul").hide();
$("#result").html("Selected value is: " + getSelectedValue("sample"));
});
function getSelectedValue(id) {
return $("#" + id).find("dt a span.value").html();
}
$(document).bind('click', function(e) {
var $clicked = $(e.target);
if (! $clicked.parents().hasClass("dropdown"))
$(".dropdown dd ul").hide();
});
});
This works very well.. but i need the dt a span show me the value of the current li (<li class="current-menu-item">), so instead "Select a Field" must say "All Fields" (current value in this example), and when i go to "Motion Graphics" (for example), when page is load must say "Motion Graphics". Can i do this adding a variable to take the value of current li and droping when document.ready? Thanks I have the following which returns the date in the format I need it in but it does not have the leading zero's Code: var wholeDate = getTheDay();
function getTheDay(){
var d = new Date();
var year = d.getFullYear();
var numMonth = d.getMonth() + 1;
var day = d.getDate();
var whole = year + '-' + numMonth + '-' + day;
alert(whole);
return whole;
}
Would return todays date as 2012-1-5 How do I get the date returned like 2012-01-05 ? Hi, I currently have a <div> with a <p> and have an edit button that when clicked will transform it into a textarea using jQuery's .html(). I also have a cancel button which allows the user to cancel the edit and return the textarea to the previous content, any ideas how I do this? JavaScript Code: // JavaScript Document
jQuery(document).ready(function(e) {
$('#edit_p').click(function(e){
$('#cancel_p').show();
$('#greeting').html("<textarea id='txt_greeting' cols='20'>" + $('#greeting p').text() + "</textarea>");
$(this).hide();
});
$('#cancel_p').click(function(e){
$('#edit_p').show();
$(this).hide();
});
});
HTML Code: <!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Textarea/Button Change</title> <script type="text/javascript" src="jquery-1.7.js"></script> <script type="text/javascript" src="txt_area_jquery.js"></script> <link rel="stylesheet" type="text/css" href="txt_area_style.css" /> </head> <body> <div id="greeting"><p>Hello, today is a great day!</p></div> <input type="button" name="edit_p" id="edit_p" value="Edit" /> <input type="button" name="cancel_p" id="cancel_p" value="Cancel" /> <?php ?> </body> </html> I'm troubleshooting some issues with menus closing and when I alert the return value from something like: Code: timer = setTimeout("closeMenu(id)",500);
I get 2,3,4. It seems to increment. Does that just represent how many times the timeout code has been executed? Hi all, I have a page built with asp.net that includes some "imagebutton"s within a form. These render as input tags with the type set to image. I ahve the onclick attribute set to run a custom javascript function and return false, so in the fully rendered page I get something like the following: Code: <input type="image" name="ctl00${cut}" tabindex="-1" title="Click to look up the details" src="images/load_details.png" onclick="LoadDetails(); return false;" style="border-width:0px;" />
This has worked fine for the few months the code has been in place and then just recently (within the last few days) it has stopped working for a single network user. They click on the link and instead of the function executing (and the AJAX loading details into the page) the form submits. This makes me think that the "return false" simply isn't executing. The user says that they haven't changed any settings or anything that may cause this issue... The browser being used throughout the company is IE8 under Windows XP. I have checked the version being used on their comptuer and it is 8.0.6001.18702, which is the same version as the one installed on my local machine... which is working fine. Another user has logged into the computer being used by the user with the issues and it works fine for the second user. Also, the user having the issues has logged into a different computer on the network and was still having the same problems. I think I've included all the details, but I'll happily provide any required information. Anyone have any ideas? Got a timing issue with sending a URI string out to a server side script right before a client side form validation process returns true.. The problem is that the return true gets called to quickly for the submission of the URI string to be completed. So my question is, might there be a way to mix a return and a setTimeout? If so, could some one give a an example? Thanks! Hey everyone, I need some help with a function. I'm using ajax to grab a response from a PHP page, on success, the ajax sets a variable. After the line that calls the ajax function is the line the returns the variable (a global variable). Problem is, because the variable is returned right after the ajax function is fired, it doesn't give the ajax enough time to set the variable. The work around I've thought about would be using the ajax function as a variable, and returning that variable in the initial return line. Could anyone either help me with a better solution, or tell me what I'm doing wrong? Here's some code for reference: The function that will return the response I'm trying to collect: Code: function lt_ajaxGet(hash) {
var params = "hash=" + escape(encodeURI(hash));
makePOSTRequest('hash.php?get', params);
return ajax_response;
}
The ajax code: Code: if(http_request.status == 200){
ajax_response = http_request.responseText;
}
Its a ads rotation code: Don know why it doesnt work... Code: <body>
<div align="center">
<script>
var brw=navigator.appName;
var id;
if(brw == "Netscape") id=1;
if(brw =="Microsoft Internet Explorer") id=2;
if(brw == "Opera") id=3;
var delay=10000;
var k=0;
var fcontent=new Array();
var b=new Array();
function go(k) {
b[0]=''
b[1]='<iframe src="http://........." width="460" height="60" scrolling="no" name="cpm" frameborder="0"></iframe>'
b[2]='<iframe width="468" height="60" allowtransparency="false" frameborder="0" hspace="0" vspace="0" marginheight="0" marginwidth="0" scrolling="no" src="http://............"></iframe>'
b[3]='<iframe width="468" height="120" allowtransparency="false" frameborder="0" hspace="0" vspace="0" marginheight="0" marginwidth="0" scrolling="no" src="http://............"></iframe>'
if(id != 3)
b[4]='<iframe width="1" height="1" allowtransparency="false" frameborder="0" hspace="0" vspace="0" marginheight="0" marginwidth="0" scrolling="no" src="http://......."></iframe>'
else b[4]=''
b[5]='..'
.....
.....
b[36]='.... '
return;
}
begintag='<div style="font: normal 14px Arial; padding: 5px;">'; //set opening tag, such as font
declarations
fcontent[0]=b[0]+b[1]+b[2]+b[3]+b[4]+b[5];
fcontent[1]=b[6]+b[7]+b[8]+b[9]+b[10];
fcontent[2]=b[11]+b[12]+b[13]+b[14]+b[15];
fcontent[3]=b[16]+b[17]+b[18]+b[19]+b[20];
fcontent[4]=b[21]+b[22]+b[23]+b[24]+b[25];
fcontent[5]=b[26]+b[27]+b[28]+b[29]+b[30];
fcontent[6]=b[31]+b[32]+b[33]+b[34]+b[35];
fcontent[7]=b[0]+b[36];
closetag='</div>';
var ie4=document.all&&!document.getElementById;
var DOM2=document.getElementById;
var index=0;
//function to change content
function changecontent(){
if (index>=fcontent.length )
{ index=0; ++k;delay=delay+5000; }
go(k);
if(delay>15000){return;}
if (DOM2){
document.getElementById("fscroller").innerHTML=begintag+fcontent[index]+closetag
}
else if (ie4)
{
document.all.fscroller.innerHTML=begintag+fcontent[index]+closetag;
}
++index;
setTimeout("changecontent()", delay);
}
if (ie4||DOM2)
document.write('<div id="fscroller" style="width:700px;"></div>');
if (window.addEventListener)
window.addEventListener("load", changecontent, false)
else if (window.attachEvent)
window.attachEvent("onload", changecontent)
else if (document.getElementById)
window.onload=changecontent
</script>
</div>
</body>
here go(k); function might do this mass (output-->NaN). plz b a help... How can i return this innerHTML on complete? Code: deleteUser: function( id ) {
elm = $( 'user_' + id );
Effect.Pulsate( elm, {duration: 1, pulses: 2} );
Effect.Fade( elm, {delay: 1, duration: 0.5} );
new Ajax.Request( 'ajax', {
method: 'post',
parameters: {mode: 'deleteUser', id: id},
onComplete: function( transport ) {
innerHTML = "<div class=\"good\"></div>";
}
} );
}
the fade works but i want to return the div to say deleted successfuly. |
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