Problem: The alert box shows up when the page loads as well as when the button is clicked. This is not desirable. code...
1, Server sider scripting laguages can be used to avoid code repetition. e.g. we can use a loop to add multiple onclick event handlers to all the elements of a navigation list. Thus we would only have to write onclick="function()" once.
2, Unobtrusive coding makes the code harder to follow.It is easier to look at the markup to find out what happens when an event occurs on an element rather than having to look through wades of JS code to find the correct event listener. This is especially true when a team is working on a project. It is easier to find out what another person has done when the traditional model of event handling is used.
3, Unobtrusive coding means longer and more complicated code. Also there there is a need for having to deal with browser differences.I know this can be reduced using libraries such as JQuery. Is it worth using such a library?
I bind a custom event on page A,then ajax load page B。In page Bthereis a <a> link which trigger the custom event.Problem is :the trigger function work when i place the trigger function in page A ,but not work in B by ajax load.
I'm using the following code to attach a method to the click event of my button. It definitely works, but unfortunately the click event happens on page load even though no one has actually clicked on the button. How do I prevent this? $('#btn').bind('click',etCategories());
I have a site which displays a selection of advert listings. We log the number of clicks each advert receives via ajax requests.The listings link to both internal pages on our site and external pages, hence the ajax - we cannot log the'clicks' by logging the requests on the destination pages as these are not all on our site for us to log. Also, I don't want to potentially get false positives e.g.from bookmarked pages - hence I am logging the actual clicks, not the requests on the destination.
All is OK in most browsers, but there is a problem with Safari (I am running Safari 4.0 on Windows XP running in Virtualbox OSE) but only where the destination is to open in the same window/tab (some listings go to a new window, some don't). I am logging clicks via an ajax request in the onclick event, which is working fine when the listing is to open in a new window, but it appears that when a new window is not to be opened, the ajax never gets sent.A have constructed the following minimal test case:
Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" [code].....
Note the line commented '****' in index.html which cancels the action of the link. When this is not commented out, the ajax request is sent correctly. Without it (the desired situation) the ajax request never gets sent. Its as if Safari saves up the ajax requests to do later, but never sends them as the new page cancels all such 'saved up' actions.I am using the Safari web developer tools, but I have also checked this test case by checking the Apache logs. Note that as a test case I don't pretend that it will work in IE, but it should work in standards compliant browsers and has been tested on Firefox 3.6.6 and Opera 10.6. The Apache logs show that logger.txt is being requested, unless it is already in the browser cache.Possible workarounds I've considered, but would prefer to avoid:
I am doing a simple function to validate text fields(you can see the code below). Now, the alert box appears only once when I refresh the page, not when I click inside or outside the username box. #username is the id of a input text field. On a sidenote, how can I pass multiple parameters to the function(not a fixed number of params)? or should I just pass an array?
I have a button on a page that is created with the <input> statement - this statement also contains the event handler onClick. The button displays correctly on the page but the event handler is not working - I know this as I put a simple alert at the beginning of the function PrcsBtn1.
I have a single webpage that contains information on all 50 U.S. states. There are 50 links at the top to jump down to the state you want, and at the bottom of the information for each state a Back to Top link.
I'm making the Back to Top link into something more complex, and it will require three or four lines of code.
So that I don't have to repeat the code 50 times, and create a burden when I need to edit it, I want to place it in a .js file and call it x. Then below the information for each state I'll simply have:
Does calling code from a .js file 50 times slow down the page load? Which method would load faster?
For 2 day ago, i have re-read and re-write my code in first i have very very broken code execution in web in second :, i re write the code and in previewer browser ( i use mozilla 3.6.8) its work off line, but when i have implanting in web page, its not work, in 3rd, with mr.airshow support i have rewrite and it work on web page (thanks mr. airshow) but still in my mind, again :
1. Why the 2nd code can not execution in web page ?
2. How the code must be to load in web page ? Any rules ?
I have written a chrome extension which will redirect to all hrefs for a given source urls in current tab.. But i don't know why all of a sudden it stops executing after reaching some page. I am attaching my code as attachment.
Is it possible to execute a JS function in a website, by using the JS console? Facebook has a function Facebook.streamPublish() for instance, which displays a dialog box to send a story to your Wall.Is it possible to call this from the JS console manually?I'm developing a Facebook application. I tried to call the above function from the Firebug console to test but with no success.
But what goes in href if you don't have anything to actually link to? One example is a page I've written that is entirely self-contained, and all href's that drive the interface end up pointing to #. Is this acceptible in edge cases like these with the unobtrusive approach?
If someone has JS turned off the markup is essentially meaningless, so I was wondering how people deal with this lapse in the separation between behavior and structure.
which is placed in the body section of the page. Anyhow, my problem is that it works fine, but only once, right as the page loads. I have tried removing window.onload, but then it doesn't work at all. How can I get this to work every time I blur from the text field?
I want to display the div marked 'General overview' by default, and to hide all of the other divs (section1, section2, section3 and section4) but would like to swap out the 'general' div with the other divs as the corresponding links are moused over.
e.g. mousing over the Section 2 link will replace the 'general' div with the 'section2' div. On mousing out, it will revert back to the 'general' div. Mousing over the Section 4 link will replace the 'general' div with the 'section4' div. On mousing out, it will revert back to the 'general' div. Etc etc....
document.getElementById("RandomElementId").onmouseover=RandomFunction; I thought this would be cool, but I can't seem to find a way to pass parameters to the function this way. I assumed you just use RandomFunction(parameter1,parameter2); but no go.
Is there a different syntax for this, or does this technique forbid using parameters?