onload-event | 易学教程

Determine which JS file/line is modifying an element on my page [closed]

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I need to determine which JS file/line is modifying an element on my page. I'm trying to find a needle in a haystack here. For example, I'm digging through 35 .js files to find out which file is responsible for a change to some text on a webpage. It seems like too much work for such a simple task. It could be changing it in many many different ways using jQuery, or just javascript. Method is unknown. But it happens on page load. Is it possible to see this information in Chrome (Developer Tools)? In Google Chrome: Right-click on the element you want to detect changes to. In the Elements pane of

Determine which JS file/line is modifying an element on my page [closed]

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问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . I need to determine which JS file/line is modifying an element on my page. I'm trying to find a needle in a haystack here. For example, I'm digging through 35 .js files to find out which file is responsible for a change to some text on a webpage. It seems like too much work for

Cross Browser Dom Ready

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I inherited this piece of code and it seems suboptimal and possibly incorrect since it's adding event listeners on both the window and document objects. However, it is working properly except for blackberry 5.0. Can someone explain if all this is set up correctly or if there are any recommendations to make it better and/or more streamlined? if (document.readyState === "complete") callback(); else if (document.addEventListener) { document.addEventListener("DOMContentLoaded",callback,false); window.addEventListener("load",callback,false); } else if(window.attachEvent) { document.attachEvent(

Add event handler for body.onload by javascript within <body> part

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We want to include a maps from Google Maps API in our document. The documentation tells to initialize the map with a function called by the onload() event of the body. The ordinary way to call: <body onload="initialize_map();"> This doesn't work out for us because we're using Template::Toolkit and the <body> tag is already included in our wrapper. In short: The <body> tag is already printed when our javascript code starts running. I tried something like this but it does only work for onclick , not onload . I guess that's because the javascript code is beneath the <body> tag itself. var body =

When to use “window.onload”?

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In JavaScript, when I want to run a script once when the page has loaded, should I use window.onload or just write the script? For example, if I want to have a pop-up, should I write (directly inside the <script> tag): alert("hello!"); Or: window.onload = function() { alert("hello!"); } Both appear to run just after the page is loaded. What is the the difference? window.onload just runs when the browser gets to it. window.addEventListener waits for the window to be loaded before running it. In general you should do the second, but you should attach an event listener to it instead of defining

Hook a javascript event to page load

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I have an aspx that has the following javascript function being ran during the onload event of the body. <body onload="startClock();"> However, I'm setting the aspx up to use a master page, so the body tag doesn't exist in the aspx anymore. How do I go about registering the startClock function to run when the page is hit and still have it use a masterpage? If you don't want to explicitly assign window.onload or use a framework, consider: <script type="text/javascript"> function startClock(){ //do onload work } if(window.addEventListener) { window.addEventListener('load',startClock,false); /

window.onload seems to trigger before the DOM is loaded (JavaScript)

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I am having trouble with the window.onload and document.onload events. Everything I read tells me these will not trigger until the DOM is fully loaded with all its resources, it seems like this isn't happening for me: I tried the following simple page in Chrome 4.1.249.1036 (41514) and IE 8.0.7600.16385 with the same result: both displayed the message "It failed!", indicating that myParagraph is not loaded (and so the DOM seems incomplete). <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

jquery .load( ) and trigger function AFTER new content loads? just like JavaScript onload event

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问题 Using jquery, I am swapping some content in a web page by use of jquery's .load() function. I want to trigger an event immediately once the content has actually been loaded, but not before and not after . I'm up for any graceful solution! Why? In this instance, I'm doing the old "fade out, swap content, fade in" approach. My problem? I want to fade back in AS SOON AS the new content is loaded. Caveats: Using a callback function as in $('#object').load(url, callback) triggers as soon as .load(

jQuery resize function doesn't work on page load

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How do I get this function to not only run on window resize but also on initial page load? $(window).resize(function() { ... }); You'll want to use: $(document).ready(function() { /* your code */ }); To make something happen onload. If you want something to work onload and onresize, you should do: onResize = function() { /* your code */ } $(document).ready(onResize); $(window).bind('resize', onResize); I think the best solution is just to bind it to the load and resize event: $(window).on('load resize', function () { // your code }); This behavior is by design. You should put your code into a

Winforms Form Constructor vs Load event

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问题 When a form loads, the code needs to do things like setup datagrids, comboboxes, set the title, etc. I've tended to always use the load event rather than the new (constructor). Are there any guidelines for which one is best for which activities? 回答1: A call to InitializeComponent is automatically inserted in the constructor of your form/page. InitializeComponent is the auto-generated method that creates the various UI elements on your winform / XAML page initializes their properties with the