How To Pass Information Into Function
Feb 22, 2011
Javascript file
function show() {
document.getElementById("").style.visibility;
if(dom.visibility == "visible")
dom.visibility = "hidden";
else
dom.visibility = "visible";
} CSS file .....
Html File
<!DOCTYPE html PUBLIC "-W3CDTD XHTML 1.0 TransitionalEN"
"[URL]">
<html>
<head>
<link href="style.css" rel="stylesheet" type="text/css" />
<script src="js.js" type="text/javascript">
</script>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Homework5</title>
</head>
My goal is to have the four Javascript buttons toggle the four pictures on and off. I know my css is right. Since everything is placed where I want it and is hidden when the page loads. I believe everything in my html is right. I am reasonably sure I am passing the img id using the onclick function correctly. I think my problem is in the Javascript file. I am thinking I am not passing it into the function correctly.
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Oct 29, 2010
I have a HTML form containing two text box controls in it and a submit button. When a user enters information in those two textboxes and click on submit, the information is sent to a function in Javascript. In the javascript, the information from those textboxes is stored in a javascript variable. The problem is as follows:When I am inputting string text in the html text boxes and in the javascript when I am trying to print those values, it is giving me out an error saying NaN. However when i input integer values in the text boxes it is printing those numbers. Is there a conversion that I have to do for the string to be printed. I am new to Javascript and need your help. This is a basic code of Javascript. Below is the code that I have.
<html>
<script type = "text/javascript">
function square(form)
[code]....
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Jan 7, 2009
This question may appear opposite of most, but I'm learning JS using a book and I can't understand why/how this particular code works. I'm working on simply retrieving and passing information to and from html forms. This is a very simple script that will change what is selected in the drop down box depending on a button push.
Here is the script:
Code:
function flip(pizzatype) {
if (pizzatype.value == "Veggie Special") {
document.forms["pizzaform"].topping.value = "veggies";
} else if (pizzatype.value == "Meat Special") {
document.forms["pizzaform"].topping.value = "meat";
} else if (pizzatype.value == "Hawaiian") {
document.forms["pizzaform"].topping.value = "hampineapple";
}}
And here is the form's html:
Code:
<form id="pizzaform" action="#" onsubmit="return false;">
<p>
<input type="button" name="veggiespecial" onclick="flip(veggiespecial)"
value="Veggie Special"/>
<input type="button" onclick="flip(meatspecial)" name="meatspecial"
value="Meat Special" />
<input type="button" onclick="flip(hawaiian)" name="hawaiian"
value="Hawaiian" />
</p>
<p>Main Topping: <select name="topping">
<option value="cheese" selected="selected">Cheese</option>
<option value="veggies">Veggies</option>
<option value="meat">Meat</option>
<option value="hampineapple">Ham & Pineapples</option>
</select></p>
</form>
The way I see it is the button onclick will call the flip function and pass it a var, for example "veggiespecial". I understand the code that will perform the actual change on the drop down menu. What I don't understand is the if statement.
if(pizzatype.value == "veggiespecial")...
Shouldn't it be just (pizzatype == "veggiespecial")?
Why does it have to be pizzatype.value? Where the heck does the .value come from???
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Jul 16, 2010
i am developing a web application in which i have to retrieve the user browser and platform information. i am using javascript to get this information and tryin to pass these values to the html hidden form element. pasting a brief code from my application.
<body>
<script>
document.mldsform.screen_width.value=screen.width;
document.mldsform.screen_height.value = screen.height;
</script>
<form id="mldsform" action="/QoEMLDS/qoe" method="post">
[Code]...
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Nov 9, 2010
I'm trying to create a simple checkout system that utilizes cookies to pass information from page to page. Currently, my entire script works fine except for the read cookie portion. I cannot figure out what is wrong with it. It has been validated and the syntax is fine; it just doesn't work. I use the function with the onload call on my html file such as:
[Code]...
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Jan 1, 2011
How can I set a href or onclick function for an "a" element that passes information to the function?I have a function showpage() that is called whenever one of a number of buttons are clicked. I need to pass information from the button clicked to that function.
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Dec 24, 2011
The following code works for Firefox but not on Chrome. Does anybody know what it doesn't work on Chrome. Is there a document on the browser compatibility info on each JQuery command.
[Code]...
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Apr 18, 2011
I have a basic understanding of selecting elements and performing manipulations or effects, but I'm having real trouble grasping the basics of setting up variables, performing maths on variables and biggest of all, how you go about passing information from the HTML into a jquery function.
I have a site where clicking on any photo thumbnail brings up a full-screen lightbox to display the image full-size - I'm using the following to bring in the lightbox:
$(".photo").click(function(){
$("#lightbox").css({"visibility":"visible","z-index":"2"});
$("#lightbox").stop(true, false).animate({opacity:1},800);
});
This works just fine, I also have no problem re-assigning the SRC of a blank image within the lightbox to make sure the correct image renders, my problem is I just don't know how to generate or pass information into this function to begin with to act as a reference point so the code knows what image it should be displaying based on which thumbnail was clicked.
I don't need anything particularly clever, even if each thumbnail simply had a numerical figure associated with it (eg "4") which gave the function something to work with once it was fired - that would be enough.
I know how to do all this in regular JavaScript but I have to admit I'm finding the documentation for jquery really hard work, I'm having real problems grasping the fact that the functions aren't being triggered directly by the HTML.
Another solution would be to get the src of the image that was clicked on, split the string and pull out just the filename (ie 5.jpg) and then prepend a path to it for the final full size image ( largeimage/ + 5.jpg).
I know there are probably pre-made scripts for this kind of thing but I'd like to try and avoid them if possible.
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Sep 24, 2011
I have been successfully using the following "myAjax" function to load text file information from the server.
ajax.js:
After I load the text file, I store the text "records" into an array by doing something like this:
Where the '}' character is my record delimiter. It could just as easily be ' ' or ' ' or the like.
Again, I am not having any problems doing it this way as it suits my current needs.
Now the question(s)
1. Does the call to read the text data from the external file always read in the entire contents or can I read one line or delimited record at a time and store it to the array directly without the text storage?
2. If the text is always read completely (my suspicion), can I safely delete the "TextInformation" after I convert to the array format? Is there any memory penalty for doing it this way as the text information can be somewhat lengthly and I don't like the idea of having doubled memory usage when I only need the information in array format anyway?
This is the idea I am considering, but I don't know if there are drawback to this method of if there is a better way to accomplish the task.
ajax.js:
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Feb 15, 2012
I want to call java function in javascript.In which we pass one parameter to function and its returns String value which I want to display in alert message.
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Oct 1, 2010
I am trying to minimize the amount of script that I use on my website. I have sections of each page; each section has the same basic layout. The divs and images that I want to make appear and disappear all have nearly identical ids, the only difference is the number at the end of the id.Is there a way to get one script to automatically detect which id number has been clicked and then show all elements with the same number at the end of the id? I would also like it to hide the elements in the hide function below (basically they are the elements that do not share the same id number).I currently have everything working the way I want it to using multiple functions like the one below but I woul
$("#2thumbNail2 , #ledBar").click(function () {
$("#type201 , #type203 , #type204").hide();
$("#image201 , #image203 , #image204").fadeOut("slow");
[code]....
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Apr 18, 2010
Is there any way to pass a function(with its parameters) to another function using a parameter?
Examples:Here is how I do it now:
function output(text){
alert(text);
}
function bla(text, func){
[code]....
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Mar 21, 2010
how to pass variable say(n) value to another function...here below my script:
<html>
<head>
<script type="text/javascript">
function docalc(){
[Code].....
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Sep 23, 2011
How do I pass an id to a function?
Code:
<html>
<head>
<title>
[code]....
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Jul 24, 2009
ok I have a unique problem, I need to pass a variable's value to a function instead of a pointer (reference) to the variable as by the time the function is called (because of the SetTimeout function) the variables value has changed.
I realise that may not be so clear so I've included the long explanation below, please bare with me ... =p
I have a 2 dimensional menu, when you hover over menu item it animates. to exaggerate that it is a menu (from the design it's not immediatly apparent) I decided to add a simple animation for when the page loads where it loops through each menu item and animates it in sequence.
each of the sub menu items are stored in a 2D array (SubMenuItemsArray) and I get the "wave" effect by having a short (60 millisecond) pause between each animation (achieved with Window.SetTimeout).
heres the code, I've set i and j to 0 after the loop to highlight the issue.
[Code]...
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Jul 28, 2010
I have a list of items and a link to delete one at time. I've build this confirmation delete script but it works in a wrong way: it takes the last item.
<html>
<head>
<link rel="stylesheet" type="text/css" href="css/redmond/jquery-ui-1.8.2.custom.css">
[code]....
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Aug 18, 2009
I'm very new at jQuery, and I've gotten myself stuck.I have a set of menu tabs which should show/hide divs on the page, and the active tab should change style.[code]
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May 25, 2010
I have an XML string which I want to pass to a java script function, where I am displaying that in different window with use of 'window.open()' method, but it is giving error.
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Mar 4, 2009
If it is possible to pass a php variable through to a javascript function.
Example.
I have a bit more to the code but that is the bare essentials as an example. If i remove the $id and $name from the passTest() for onClick the function works properly. However if I leave them in the function doesn't seem to work at all.
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Apr 12, 2010
I was wondering if I can pass my php variables through javascript function. Actually i have a simple table of pictures, when clicked in the picture a new popup page comes up, it working fine uptill this stage but now I want to pass a value through it, for instance if user clicks on picture1 then my popup url should be "item_large.php?id=pic1.
My Javascript junction for the popup window:
function popup() {
window.open("item_large.php","Register","menubar=no,width=500,height=400,toolbar=no");
}
My Html code where I have my pictures:
<td height="19" align="center" valign="top" onmouseover="this.bgColor='#CC3300' ; this.style.cursor='pointer'" onmouseout="this.bgColor='#FFFFFF'" <A HREF="javascript:popup()">Picture01</A> </td>
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Dec 27, 2010
I have a php script which dynamically creates a table containing text boxes with variable names.
Example:
In the above instance the text box name might be 'payable_23323'.
I need to code an onKeyUp event which sends the text box name to a function, and in that function I need to retrieve the text box name and the string after 'payable_' together with the value the user has input into the text box.
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May 30, 2011
I'm adding buttons to my google map through a loop. I pass some parameters, and the addButtons() function creates the buttons. How can I pass the "task" for the button to the function? In the addDomListener line below, I'm now writing the function name literally, I'd like find a way with a parameter.
// The loop...
for (i=0;i<=4;i++) {
oCC = addButtons(aCtrls[i],'btnContainerChild');
[code]...
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May 11, 2010
I am trying to figure out how to pass the value of an item from my HTML form through Javascript/Ajax.
Here is the code:
This is what I have in my showRSS function:
This does not seem to be working, is there something I have missed here to that the value in my checkbox input would be passed through the showRSS function?
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Jul 20, 2010
How do i get a variable from one function into another function. I am new to javascript.
Here is my code ...
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Jun 6, 2010
I am trying to pass a value to another function, seems to work with the other function i have but not this one?
any reasons why this wont work?[code]...
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Jan 9, 2011
I know in different languages (VB.Net,C++,C#) how to pass an argument to function in this code:
<html>
<head>
<script language="Javascript">
<!-- hide
function openNewWindow() {
popupWin = window.open('[URL]',
'open_window',
'menubar, toolbar, location, directories, status, scrollbars, resizable, dependent, width=640, height=480, left=0, top=0')
} done hiding -->
</script></head><body>
<a href="javascript:openNewWindow();">return to front page</a>
</body></html>
I need to add several links in my page, so I need to pass indexes from links to main function, so I can open images in specific folder with indexes filenames. For example in vb
Subname("text_to_pass_to_SubName")
Public Sub SubName(ByVal function_text as string)
End Sub
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