How can a function be written so that it is reusable within the same form? eg, I wish to place another select menu and its own result span <span="mySpan2"> in the following code (eg. mySelect2, mySpan2) - whichever select menu is chosen displays its own result within its own span: Code:
View 4 RepliesI am here working with browser-based application (quite complicated),
where I work on some plans in one window and then I need for every plan
open other window (HREF of which can be calculated from the current
HREF) to take a look at some data. There are hundreds of such plans so
I would like to be able to manipulate other-data window with keyboard.
So far I have created this with Greasemonkey:
(function() {
var ATags = document.getElementsByTagName("a");
var hrefArray = window.location.href.split("/");
hrefArray[hrefArray.length-1] = "gallery";
var imageHREF = hrefArray.join("/");
for (var i = 0; i < ATags.length; i++)
{
tempElem = ATags[i];
if (tempElem.getAttribute("href") == imageHREF) {
tempElem.setAttribute("accesskey","I");
tempElem.setAttribute("target","_blank");
}
};
})();
But I would love to be able to reuse that data window. I know that I
cannot control random other window with JavaScript, but could I somehow
create new window and to store its handle via GM_setValue for later
reuse? Did anybody see anything like this?
I have one problem with my reusable function to validate date..
I want to use this function to all my web project no validate date, but
It's works fine if I have one textbox to validate in the same form, If
I have two textbox the return doesn't works correctly.. how can I do
this? Code:
What I have been doing so far to make a "class"/Reusable object is this:
PHP Code:
function Dog(){
this.name name;
this.bark = function(){
[code]...
However, recently I have been reading a book on Javascript and it said that the problem with this way of doing it, is that the bark() function will be loaded into memory for each Dog object created this way, while the body of that function is the same for each object.
- A Person class with a name property and a jump() method.
- An animal class with a isMammal property and move() method.
- A Dog class with a numberOfLegs property and a bark() method which is a subclass of Animal (thus inherits the isMammal property and move() method.
- Each of those classes in its own file.
This book I've been reading is actually pretty good, but at some points it's explanation is not rich enough.It explains that functions are objects and that objects in javascript are just key-value pairs. It says that each function has a prototype property which points to a blank Object(), but you can make it point to something else? or maybe I misunderstood it. I still don't understand how it really works.
I have written a number of functions designed to return frequency data on 1000 randomly chosen numbers using different math functions for the rounding. I would like to include all of these functions within the wrapper of another function so that only one call is needed to get returns from all of the 'inner' functions. However, while each of the functions works in isolation, the moment I wrap them in another function they stop working. :confused:
The following code is one of the functions 'frequencyWrapperOne' that has been wrapped in the function 'testWrapper'. A call to testWrapper does nothing.
function testWrapper()
{
function frequencyWrapperOne()
{
[Code]....
$(something).split(something),this is a function with a function as a property for that function.
View 8 Replies View RelatedI have several form in my site, that validate on onsubmit.I call all the validation functions from a file call functions.js.Here is a sample of the code that is working:
<form name="contact" action="contact-insert.php method="post" onSubmit="return checkform()">
<label class='SubHeadlbl' for='TextField1'><?php echo IDS_EFORMNAME?><br></label>
<input type='text' name='dfname' class='text_field' id='dfname1' size='70' maxlength='40'/>
</form>
all the other forms are not working. all have the same structure:
<form name="frm1000" action="frm1000-insert.php method="post" onSubmit="return checkform1000()">
<label class='SubHeadlbl' for='TextField1'><?php echo IDS_EFORMNAME?><br></label>
<input type='text' name='dfname' class='text_field' id='dfname1000' size='46' maxlength='40'/>
</form>
I don't know what is happening only one for work all the others don't.
I think my brain would have exploded otherwize. Some of the problems have been simple misspellings, but when you have been staring at the same thing for hours it can sorta slip by.Bascially Im not sure if Im using the function command properly. When Submit Details is click it should validate the form and then when Calculate is pressed calculate the form (obviously).I think maybe my var Array table is wrong? And the way the functions are set out doesnt seem it sit right.
View 10 Replies View RelatedDefine the function dollarToEuro, which consumes a number of New Zealand dollars and produces the Euro equivalent. The current exchange rate is approximately one New Zealand Dollar to fifty five Euro pence. Code the function in JavaScript. Prompt the user for an amount in New Zealand dollars and display the result.
So far i have done this coding :-
var nzd = Number(prompt("Enter The Amount Of New Zealand Dollars", "10"));
function dollarToEuro(nzdollar)
{
return (50/nzd)
}
document.write(nzd, "NZD =", dollarToEuro, "Euros");
It is not working.
How do you handle two functions? For example:
if I have two separate scripts, one that opens a popup window onclick and one that does a tool tip onmouseover, how do I tie them together inline, at the link? And i can put them in the same <script> tags in the head, right?
How do I "merge" the two functions below - checkFromDate() and
checkToDate() - so that I only have one function. I want to do the same
validation in both text fields, but only have one function that does all
the validation.
<html>
<head>
<script language="JavaScript">
function checkFromDate() {
var ToFrom = document.form.txtFromDate.value
// Do some other validation...
}
function checkToDate() {
var ToDate = document.form.txtToDate.value
// Do same validation as above...
}
</script>
</head>
<body>
Start Date : <input type="text" name="txtFromDate"
onBlur="checkFromDate()"> yyyy/mm/dd <br>
End Date : <input type="text" name="txtToDate" onBlur="checkToDate()">
yyyy/mm/dd
</body>
</html>
I am learning HTML for the first time taking a self teaching class
though my local Community College. Normally this college rocks and has
some of the best resources and down to earth teachers that pick books
that acutally help folks.
Well they failed and my book take more logic jumps that Stephen
Hawkins! :D
So my ultimate question is as follows:
How do I created a function with the following information provided:
Create a fucntion named Mquote that contains the single parameter,
Qnum.
My apologies for such little information. I am sure its my oversight
that I am unable to locate the answer to my question.
What I am looking for is the base layout for noob java functions.
I want a function to take another function as a parameter, and execute it as a line of code. I put a simplified example below, just to illustrate the idea. Does anyone know the syntax to do this, or is there perhaps a better approach entirely?
// EXAMPLE
doSomething(5, 10, functionA, functionB);
function doSomething(x, y, myFunctionA, myFunctionB) {
if (x > y) {
myFunctionA();
} else {
myFunctionB();
}
}
function functionA() {
// some code
}
function functionB() {
// some code
}
When I click on the "Check All" checkbox, it correctly checks all of the boxes in my form, but I would like each checkbox to also call hideLayer2 function just as what would occur if the user checked the boxes individually. Is there a way to call the hideLayer2 function and pass the correct whichLayer and the_box parameters within the DoToAll function? Maybe there is an easier way?
Code:
Is it possible to merge two functions like these?
<script type="text/javascript">
function showdiv(pass) {
setTimeout('showdiv2("'+pass+'")', 750);
}
function showdiv2(pass) {
var divs = document.getElementsByTagName('div');
for(i=0;i<divs.length;i++){
if(divs[i].id.match(pass)){
if (document.getElementById)
divs[i].style.visibility="visible";
}
else {
if (document.getElementById)
divs[i].style.visibility="hidden";
}}}
</script>
looking for a way to pass an array to a function.
====================================
<script>
function myfunction(arrayname)
{
document.write("blablabla"+ arrayname[1] +"blablabla");
}
</script>
<html stuff>
<script>
arrayname = new Array("what", "is", "wrong");
myfunction(arrayname);
</script>
====================================
I basically have 2 "if" statements. How would i go about combining them?
function validate_form(thisform)
{
with (thisform)
[code]....
I thought about following code snippet code...
Has anyone an idea, if my thoughts on that are correct oder if this behaviour could be a problem?
And is there probably a better way to combine functions, so that all functions would be in one column?
Hello, I have a very large function that activates on one click. It does many individual events that modify my site. They all work seperately but when I put them in a single function they all break. Is there a way, order or priority for putting large things of code in functions?
I tried doing {} blocks but it didn't help.
Can anyone point me to a set of statistical probability functions that will give me (say) the probability for a t-test, an F-test or a X2 test. I did find some in the wild on the net, but I am unsure of the legitimacy of using them.
View 1 Replies View RelatedI want to find out what is the file name of the page that a user is currently viewing (for e.g. the file name of the page where I am composing this query currently is newthread.php). If the file name is Edit.asp, then do something else......this is the
(this is the onLoad event function)function getFile(){
var strURL=window.location
//since the file name will be at the end of the URL, I am using
//a negative number as the start parameter in the substr function
if(strURL.substr(-9,strURL.length)=="Edit.asp"){
//do something
}
else{
//do something else
}
}
But the above doesn't work. In fact, some of the JavaScript string functions I tried (like match, length etc.), none of them seem to work since the string has been derived using window.location. Why? Doesn't JavaScript consider the URL of a page as a string object?
I'm having a problem. I was able to get the edit working fine. I was able to get it to hide the current div and go to a different div. When I combine the two, the edit works but I cannot go to the different div.
I'm thinking something is missing here?
function goto_testDiv()
{
return formCheck(this);
document.getElementById('startDiv').style.display = 'none'
document.getElementById('testDiv').style.display = 'block'
}
I am writing a simle extension on Google Chrome. But chrome's extension API is not powerfull enough for my extension because i need file io operations for local files. That's why I need to call functions from dll which i write from javascript.
<script type='text/javascript' language='javascript'>
var obj = new ActiveXObject("plugin_proxychanger.dll");
var vResult = obj.plugin_header_class.plugin_header_func_read(3);
document.write(vResult);
</script>
I get this error on every browser: ReferenceError: ActiveXObject is not defined I research it on google and some users told me that i need to write a COM dll. But my dll is .net(2.0) because I don't know how to create a COM dll with Visual Studio 2010.
Lets say I have something like this:
Code:
function doSomething(action,onComplete) {
//now this will perform an asynchronous action which will take oooo' lets say 100 ms.
[Code]....
This won't work for complex method structures and there is a high chance that it freeze the entire page as a runaway process.
Is there any other way of performing this?
I'm struggling a bit with trying to make sure when I set an event handler (or listener) on some element which calls a function I've got elsewhere, that the function can't see necessary vars because they've already been garbage collected.I'm following the type of setup as in Simply Javascript or the Javascript Live course.o I have stuff like this
Code:
var SomeObj = {
init: function() {
[code]....
Is javascript capable of file functions? such as fopen, fread, fwrite, fclose.
View 6 Replies View Related