onload | 易学教程

Javascript for loop to change the name of textareas in a function

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问题 I have created 50 textareas with names def1,def2,def3.....,def50 . In my body onLoad() function,I want the same value is set in all these textboxes. Instead of writing the code 50 times, How can I write some Javascript code to set the value of the textarea , ie in a loop? 回答1: I suggest to read the MDC JavaScript guide, as loops and string concatenation are fairly basic operations: for(var i = 1; i < 51; i++) { var nameOfTextarea = 'def' + i; // ... } 回答2: I would give your textboxes ID's

OnLoad client event for Image control

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问题 I need to bind client side onLoad event with ASP.Net Image control. I have tried it for quite some time with no success. Function Name onload="onLoadFunction(this)" Script: function onLoadFunction(img) { $(img).css("visibility", "visible"); // Using jQuery // img.style.visibility = "visible"; // Using just javascript. } Markup: <asp:Image ID="imgTopFourImg2" runat="server" width="170px" height="112px" CssClass="ArticleImgHP" border="0" ImageUrl="hello.jpg" OnLoad="onLoadFunction(this)" /> It

Duplicating base64 data

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问题 This is a follow up from the following link on stackoverflow Iterating through : Reader.OnLoad which Máté Safranka kindly helped me with earlier. I'm almost finished with it, does anyone know why in the function function onAllImagesLoaded(imageList) the line console.log ("imageList: " + imageList); is duplicating the image data all the time, that's what it's doing at the moment and I can't figure it out. If I select more than 1 file, the image data is the same for each one! Arggghh Thank you

Location picker extract values

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问题 I have a location picker in my website which works fine so far (code below). I have a JS function that extracts all interesting variables and places them in other elements. When a user clicks a button that calls this function everything works fine, but when I want to call it on load time it does not work as intended. My location picker (CSS removed): <div class="col-md-7"> <h3>Locationpicker</h3> <table class="structure_table"> <tr> <td>Location:</td> <td><input type="text" form="" id=

How to call function on page load in JS?

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问题 I have a js function which looks like this function showProducts(){ document.getElementById("shopList").innerHTML = "<ul><li>Test Text</li></ul>"; } It's a function that has to show an array of my products. I've made an div with id="shopList" in my html page <div id="shopList"> </div> But how can I call the function to show me the text in the div? It works when I use this as my body tag but I'm not allowed to write any js code in my html or to use onload or onclick. I'm trying to do it with

How to execute CSS3 animation onLoad instead of hover?

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问题 I want to use this specific css3 item right here: http://cssdeck.com/labs/navigation-dropdown-with-flip-effect The way it is currently set up is by hovering over the element. How do I make it so that it triggers that event onLoad of the body, since there is no JavaScript being used at all in this? Thanks! 回答1: Change all .navigation:hover to .navigation.hover and apply that class with javascript ( or if you can change the html just add that class there <ul class="navigation hover"> ) document

Is this how you incorporate an Onload Event?

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问题 I have a quick question. I am trying to incorporate an onload event in HTML5. Here is my code but it refuses to work. Please let me know what I am doing wrong. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Animation</title> <script> document.getElementById('videoBackground').onload = function() { document.body.style.backgroundColor = 'black'; } </script> <script type="text/javascript" src="js/animCD.js"></script> <link rel="stylesheet" href="style.css" type="text/css"

Bind the .datepicker() to new input elements

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问题 I am trying to add the datepicker to input elements created on the fly.I understood the usage of .on() or .live() function but I can't find the right event to bind them on: Trying to use .on since live() got depercated I succeded the following: On input field click it's turned into a datepicker input $("#container").on("click", ".date", function(){ $(this).datepicker() }); But I need this on the onload event which does not exist on inputs. 来源： https://stackoverflow.com/questions/11716536/bind

Second onload function does not work

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问题 I have the following code and the second onload event is not firing: <script type="text/javascript"> var startime = (new Date()).getTime(); window.onload = function(){ record_visit('ol'); } //ol - onload window.onload = function(){ setInterval("upState()", 30000); } window.onbeforeunload = function(){ record_visit('obul'); } //obul = onbeforeunload function record_visit(value) { var x = (window.ActiveXObject) ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest(); x.open("GET",

Calling javaScript Function

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问题 I am adding my external .js file as <head> <script type="text/javascript" src="service/js/test.js"></script> </head> Inside the test.js I have one function called functionTest() . Calling this function onload of the body is working fine; <body onload="functionTest()"> </body> My Question is: I want to call this function two time in the two different divs. How should I achieve this ? <body> <div id="left">  </div> <div id=