Invoke Function From Variable?
May 15, 2010Is there any way of running a function where the name is stored as a string in a variable?
I mean, the same way that PHP handles this is by appending "()" to the end of the variable.
Is there any way of running a function where the name is stored as a string in a variable?
I mean, the same way that PHP handles this is by appending "()" to the end of the variable.
I know function name can be invoke by string using the following:
window[functionName]
But how do I use this for namespace function i.e. myname.function ?
I'm using an ajax script that receives a value into an input box and thus performs a function. I need to invoke the function immediately after the input box has a value. Currently the box has to lose focus in order for the function to work.
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I create an object like this:
var cell = document.createElement("td").
It doesn't have to be cell.
I want this cell to use the onclick event. What doesn't work in the IE as
well as with Mozilla is:
cell.onclick = "whatever()";
What works only with Mozilla is:
cell.setAttribute("onclick", "whatever()");
So my question: Is there any way to get this done in the IE?
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";
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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.
how to invoke a link event ? I have tried two ways, both doesn't work. what is the correct way ?
<a href="http://google.com" id="my_link" >go to google</a>
in javascript
$("#my_link").trigger('click'); // doesn't work
$("#my_link").click(); // doesn't work
i have some dynamically generated HTML It ends up with several java script functions with predictable names
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i have a website page that contains only data of which one field gives the number of messages in your inbox, and i need to refresh this as new messages can come in at any time, so the user, while on this page can see there are new messages. how can i call my JS/ajax to do the refresh? i tried header("Refresh:10"); but client was not happy as it refreshes the whole page, he only want the no of messages to refresh as they come in.
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Assuming I have an image in my page
I would like to invoke the 'save as' context menu for that image when the user left-clicks the image
I will have a link embedding the image. Clicking the link should invoke the menu and allow the user to save the image
Assuming I have 2 images. Image A and image B.
Image B is a small thumbnail version of image A
Image B is displayed on the screen
When the user left-clicks it, the 'save as' context menu should open (see previous question) and will allow the user to save image A (this is right, the original image and not the thumbnail being display)
Is this possible?
How can we fire/invoke ondragstart diagrammatically in Mozilla?
View 5 Replies View RelatedI am working on building a page at [URL]. As you can see I have several DIVs made to look like coupons. I would like to invoke fancybox when one of these coupon divs is clicked. Fancybox would load some html displaying the full details of the coupon and would have a button to allow you to print it. The html for the fancybox could either be an inline hidden div or pulled via ajax but I am unclear on how I could get fancybox to fire when I click on a div rather than on a link. I know that what I have is not correct because without the href I am not sure how to specify what to launch.
View 2 Replies View RelatedI have a Java Script loop which will be polling if any child windows are closed.The code is working fine in all versions of IE in the local system. But when we invoke the application via CITRIX and IE6 then we are getting the PERMISSION DENIED error.and the same is not coming with the CITRIX and IE7.This is the code.
function singleChildWinClosed()
{
if (closeOtherChildWinRunning==false && logout==false )[code]...........
I have a simple problem and cant seem to figure it out. I have a function in the body.load function that is supposed to highlight rows in my table when i mouse over them. When u refresh the page, the function works properly. When I dynamically add new rows to the table using ajax, I get no response.
View 3 Replies View RelatedSo I've got this checkbox thing going on, where an array converted with the value of each checkbox in it.It looks like this:
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What I want out of this function is the variable newworkdays to use in another function.
How do I access the "newworkdays" outside the function? I've already try to declare the variable outside of the function, though that resulted in that I didn't get the value of the variable inside the function.
Here is the code:
for (var i = 0; i < BS_crm['activityTypes'].length; i++) {
var clickFunc = function(){ activityList.showForm( -1, {blockType:[""+BS_crm['activityTypes'][i]['id'], "0"]} ); };
var type = {
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Now, basically what I am doing here is running through one array to create an array of objects, that will be used to create links that will use whatever onClick function I pass it. The problem is that on the second line I need the BS_crm['activityTypes'][i]['id'] to be a value, not a reference. If that line was simply changed to:
var clickFunc = function(){ activityList.showForm( -1, {blockType:["3", "0"]} ); };
I'm making some changes to a google chrome extension I made and am having some trouble. Heres my code on a content script page (removeAttr.js) :
chrome.extension.sendRequest({greeting: "whitelist"}, function(response) {
var whitelist = response.whitelist;
console.log(response.whitelist);//working
});
alert(whitelist);//alerts "undefined"
How do I acess the whitelist variable from outside the sendrequest() function?
Iv tried saving it to a window.var variable with no luck. Iv tried creating a div and assigning it's innerHTML as the whitelist variable and getting it later with no luck. The fact that it's a chrome extension complicates things because i dont actually know if i can create elements from where the script is located.
I have to following jquery lightbox code:
<script type="text/javascript">
$(function() {$('#largerview a').lightBox({
fixedNavigation:true,
[code]....
how to pass variable say(n) value to another function...here below my script:
<html>
<head>
<script type="text/javascript">
function docalc(){
[Code].....
I am currently working on a code that has a function within it called findHighestValueIndex which will find the highest value in an array. The problem I am having is writing this function so i can call it in the program to work on 2 different arrays. I already have it working on the array assesmentScoresArray, but I also need it to work on the weightedScoresArray. Is it actually possible to do this or do i need to write another function that is almost the same but with the arguments etc for the other array? I will paste the code below so you can see where I am up to. I am a novice in programming so im probably going about this all the wrong way
<HTML>
<HEAD>
<TITLE>
[code]....
Im trying to set the value of a variable with a function, the variable i want changed is defined in another variable.
Then later i have this:
The "Selected" var is the var i want to change, and the value of it will change every time one is changed (it's for a calculator) When i try it though, it changes the value of the "selected" var it'self and not the var that i want changed. how i can i got it to change the value of the value of selected and not the selected var it'self?
Heres what i got, ignore all the unknowns they come from textboxes etc.
My problem is in this function I change the value of a variable. I want to store that variable change so i can use it in another function. Heres what i got.
function setupGame(){
var guessesLeft = guessNo.value = 10;
var wordSplice = new Array();
wordVal = word.value
wordVal = wordVal.toLowerCase();
alert(wordVal);
for(var i=0; i<wordVal.length; i++){
wordSplice[i] = wordVal.substring(i, i+1);
wordSoFar.value += "*"
}}
Thats the first function, the variable or 'Array' values of wordSplice I saved I want to use in this function :
function runCoreEngine(){
for(i in wordSplice){
}
}
How I would modify the following function to get it to check if a url variable is present and if so to add it into the string variable for the url.
Code:
If my url is index.php?make=Apolo then I need to get this added into the var queryString part of the function so that the ajax returns the correct values.
I'm trying to add a php variable to a url in the following function but can't get it to work...
Code:
<?php
$leEcho = "theEcho";
?>
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I am using Jquery but the question belongs to simple JS
$("#anyID > tbody")
Now this works fine where # comes before any ID The problem is if i have anyID in JS variable like
var1= "#anyID";
How can i insert that in above function
$(var1 + "> tbody"); is not working
I am using Jquery but the question belongs to simple JS
$("#anyID > tbody")
Now this works fine where # comes before any ID
The problem is if i have anyID in JS variable like
var1= "#anyID"; How can i insert that in above function
$(var1 + "> tbody"); is not working
I have a .js file that receives a value from an html page. I'd like this
value to be a global variable that all functions in the .js file can use. I
have tried just declaring a var at the top of my .js file, but when the
value comes into the function and gets assigned to that variable, it is not
global.