Function Name In Variable Combined With 'call'?
Jan 12, 2010I have a situation in which the function to be called is stored in a variable.
Code:
function Test() { this.v = 10 }
function abc(o) {
alert( this.v + " and " + o) ;[code].....
I have a situation in which the function to be called is stored in a variable.
Code:
function Test() { this.v = 10 }
function abc(o) {
alert( this.v + " and " + o) ;[code].....
how can I call a function by using the value of a variable name?i.e.
Code:
var str = "function_name";
// call 'function_name' by using its 'str' alias
I'm having trouble calling a function using a variable, from within a parent function. For instance:
function parent(){
function child(){
console.log("It worked")[code]....
That results in "TypeError: 'undefined' is not a function (evaluating 'window[test]()')"
how do i call a variable from a specific function in another function outside the first one?
View 4 Replies View RelatedI can call a function from a hyperlink as so:
<A HREF="javascript:go()">+ Add Text</A>
but how do I pass a variable to the function in this hyperlink?
i'm having trouble with some of my codes.i've been trying to put variables in function calls parameters, but it just does not work.
for example, if I try to do sth like this:
Code:
//a function that creates page numbers based on number of pictures that can be shown on the page
function MenuBar() {
pageSpan = [document.createElement('span')];[code]....
when i try to run it, it won't work.what i'm trying to do is that every time the loop runs, the "onclick" event of the created span will be the value of the loops "x" variable -1, and the value of x variable.meaning, for every new span, the parameters in the showImage() function are different.
Code:
pageSpan[1].onclick = function () { showImages(0, 1) };
pageSpan[2].onclick = function () { showImages(1, 2) };
pageSpan[3].onclick = function () { showImages(2, 3) };
pageSpan[4].onclick = function () { showImages(3, 4) };
pageSpan[5].onclick = function () { showImages(4, 5) };
I am simply trying to use a global variable in javascript, but can only access the variable on the second call. I can't find anything that relates to this through my searches. My application is supposed to query the server for XML that tells me which years and months are available to put into combo boxes. I want to store this xml in a global variable to access it later.
[Code]....
<button onClick="return popup('<span onClick='selectShape(1, 1, 1)'>test<span>');" tabindex=Ɖ' onFocus="setFocusColor(0,3)">....</button>
This will work perfectly, but as soon as I need to pass Strings inside the selectShape function, I get stuck.
So the question is, how can I create the following and have it working
......selectShape(2, 'Tricky', ཤx5°').....
I am trying to make a script that will display a random banner, and also cloaks the url in the browser status bar in the bottom left. I have found these 2 seperate scripts on the net, this one was for cloaking the url
<a onclick="parent.location.href='[URL';
return event.returnValue=false"
href=[URL]>Anchor Text</a>
And this one was for the random banner
<script language="JavaScript"><!--
//Javascript Created by Computerhope [URL]
//store the quotations in arrays
images = new Array(4);
images[0] = "<a href = '[URL]'><img src='[URL]' alt='Visit Computer Hope'></a>"; .....
I have a program that allows the user to input a product number from 1 to 5, and the amount of each product number sold. After all values are added, the program is supposed to calculate each product's total retail value, as well as the total retail value of all five products combined. The program runs fine, up until the end. I got all my alert boxes working, and the program is doing the multiplication as it is supposed to. However, when I get to the end, I receive "Last weeks total retail sales are: $NaN".
My code:
var productNum;
var quantity;
var prodPrice1 = 2.98;
var prodPrice2 = 4.50;
var prodPrice3 = 9.98;
var prodPrice4 = 4.49;
var prodPrice5 = 6.87;
var total1;
var total2;
var total3;
var total4;
var total5;
productNum = window.prompt( "Enter a Product Number (1,2,3,4,5):", "1" );
quantity1 = window.prompt( "Enter the quantity sold" );
productNum = window.prompt( "Enter a Product Number (1,2,3,4,5):", "1" );
quantity2 = window.prompt( "Enter the quantity sold" );
productNum = window.prompt( "Enter a Product Number (1,2,3,4,5):", "1" );
quantity3 = window.prompt( "Enter the quantity sold" );
productNum = window.prompt( "Enter a Product Number (1,2,3,4,5):", "1" );
quantity4 = window.prompt( "Enter the quantity sold" );
productNum = window.prompt( "Enter a Product Number (1,2,3,4,5):", "1" );
quantity5 = window.prompt( "Enter the quantity sold" );
total1 = document.writeln("Total for product 1 is $" + (prodPrice1 * quantity1) + "<br />");
total2 = document.writeln("Total for product 2 is $" + (prodPrice2 * quantity2) + "<br />");
total3 = document.writeln("Total for product 3 is $" + (prodPrice3 * quantity3) + "<br />");
total4 = document.writeln("Total for product 4 is $" + (prodPrice4 * quantity4) + "<br />");
total5 = document.writeln("Total for product 5 is $" + (prodPrice5 * quantity5) + "<br />");
document.writeln( "<h1>Last weeks total retail sales are: $" + ( total1 + total2 + total3 + total4 + total5) + "</h1>" );
I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function:
function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
[Code]...
and trying to call it later on with this: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name.
I'm trying to make a username form validation combined with ajax but I'm stuck at 1 point. I need to use a var that is outside of my $.get() function so that I can add the function to the validate plugin.
This is what I have:
As you can see, I'm trying to change the value of "var result" to true, but since that is outside of my $.get() it doesn't seem to happen. I tried to put the return command inside the $.get function, but then my validator always keep saying it's a false check.
Is there anyway I can call that var inside my $.get function?
I have a few html fields in a form that use PHP in order to calculate a combined value and then inserting it into the database. However, I would want that value to be displayed to the user as well before they insert it, just so they can verify that the value is correct. But how do I go about and do this?
It is probably very simple, but I'm a PHP programmer and have very little knowledge of JavaScript. Basically this is what I would want:
<field 1> -20 +(or -, depending on user input) <field 2>
Result of that to be displayed in <field 3>
However, I only want the -20 to calculated when something is entered in <field 1> so that it does not say -20 in the output field before the user even started typing a value.
i found this sample code
Code:
<script>
function setOptions(chosen) {
var selbox = document.myform.opttwo;
selbox.options.length = 0;
if (chosen == " ") {
selbox.options[selbox.options.length] = new Option('Please select one of the options above first'
[Code]...
I am trying to reference a session variable inside some JQuery code. Theseexamples below arewhat I am using currently just to try and see if I can get something to display and nothing shows up.[code]Just to make sure an alert works, I threw in a alert("hi"); which works fine. It is when I try to write out the session variable it fails.
View 8 Replies View RelatedI'm building a form in PHP. One of the fields needs to generate information based on another selected input. The first input is for "phase" and based on that I need to count how many entries there are in the database for that phase, then display posible positions(ie 1 per entry including the entry being edited/added). I know that this can't be done with only PHP.
I don't work with Javascript normally so I am struggling. I have read many similar topics, but can't find the answer I am looking for.
I thought that the solution could be to call an include file when a selection for phase is made, but I don't know how to pass the information to the PHP script.
I'd prefer not to have to reload the page or form.
Here's the code that I have so far:
Code:
<html>
<head>
<body>
<form action="edit-category.php?id=<?php echo $id; ?>" method="post"
[Code]....
I have an iframe....
<iframe src="somepage.html?var="tom";vartwo="jane";varthree="peter"">
Now....that is all great...BUT, I need to pass another variable INTO the iframe like the others (var, vartwo, varthree) and I won't have that variable UNTIL I do some javascript function to extract a background color from a div tag. Basically, I have to pass a bgcolor into the iframe so the resulting page will then display itself with a color that matches the parent page. Its a backend process....basically, the backend app needs "backcolor=" appended to the iframe.....BUT the iframe is loading first...so how do I do this?
How can I call functions from the value of a variable?
I do this in PHP, like $variable(); or {$variable . 'CallBack'} or using something like call_user_func().
I've been search all day though, and can't find how to do this in javascript. Is it possible?
I'm sure it's just a syntax problem. You can ignore most of this function because most of it works. The part I'm asking about is the "coordinates" variable 4th line from the bottom. The "office3" variable is a dynamically populated office number. I have the office numbers all defined as variables somewhere else but since I can't just name the variables as numbers I had to put a $ in front of them. Basically I'm trying to call the office number variable, $1656 for example. So "coordinates" is meant to be equal to "$+the chosen office number".[code]...
View 21 Replies View RelatedI'm wanting a table cell click event to remove and replace the table it was clicked on, however I'm finding that as it's deleting the original table object the actual running event code is being replaced and the function is bailing.how I can call the delete/refresh function from outside the event's function scope?
View 1 Replies View Relatedhow I can accomplish wrappingrelevantparts of a script into a function then call that function within a success area on another page.
This is what I have so far: Script.js page - This page is longer but this is the relevant part that I would like to wrap:
$(".product img").draggable({
containment: 'document',
opacity: 0.6,
revert: 'invalid',
[code]....
I have just started learning JQuery and have a doubt in the below code. $.get('myhtmlpage.html', myCallBack);The doubt is should the 1st parameter of the get function be a HTML file or can it be a unction name?
View 1 Replies View RelatedI 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.
View 2 Replies View RelatedI'm having a small problem, I'm trying to reach this: (This is just regular JavaScript).
But, when I'm trying to get it working on Mozilla FireFox (Combined with MacBook Pro), it fails. So I want to try with jQuery, but I don't know about it,
function changeText(){
I have a real perplexing issue. In two separate "projects" I had code that displayed checkboxes - when clicked, they would fetch information from a db and display it in the div below. I had code that displayed a jquery date-picker - when clicked, it would fetch information from a db and display it in the div below. My issue comes with this:
[Code]...
I'm not very experienced with jQuery yet and after a while of trying and searching I decided to ask for help here:
I'm using jCarousel Lite, the "Custom Widget" scenario (click in the list on the left)[url]
When clicking on a image in the carousel, the larger image is shown immedeately. I'm trying to achieve a fadeout, fadein effect. Doesn't need to be a crossfade, a fade out to white, fade in from white is fine.
My 'bare' code (this works, with instant showing of pictures, without any fades)[code]...