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  1. Hi, Prototypal inheritance advocates Approach: 2, where we wrap the parent prototype with new object, augment the constructor and then assign it to subType. However, in Approach : 1 I havedirectly assigned the prototype both instanceof and prototype checks have passed. function Person(){}Person.prototype.sayHi=function(){ return "hi";}function SubPerson(){}//Approach : 1 directly assign the prototypeSubPerson.prototype= Person.prototype; //Approach : 2 wrap it with the other object//var newObject= Object.create(Person.prototype); //newObject.constructor=SubPerson;//SubPerson.prototype=new
  2. Hi All, In the code below, function Person(){ var personProperty="personPropertyValue"; //1 this works fine this.getPersonProperty=function(){ return personProperty; //2. this gives undefined this.getPersonProperty=function(){ return this.personProperty; //3. this give method not found on object Person var getPersonProperty=function(){ return personProperty; } } var o= new Person(); alert(o.getPersonProperty()); In 1 and 2, this points to current object execution context which is o, so both should produce same result, but in 2 I think this.personProperty point
  3. Dear all, some help will be highly appreciated. I have a JS code that has a form for first name and last name. Ajax then communicates with a PHP script and gets back a message from PHP that thanks the user by stating the first and last names of user. The PHP message will show at the bottom of the form without having the page to refresh. The PHP message ensures a successful communication between JS and PHP via Ajax. The JS script:<!DOCTYPE html><html lang="en"><head><script>function ajax_post() {//create our XMLHttpRequest objectvar hr = new XMLHttpRequest();//create som
  4. Hi there. I'm a newbie JS learner and I would need help with some simple stuff. Tools:SkypeJSBin or similarI am friendly, easy and fun to work with. I doubt it would take more than 30-60 minutes to do this stuff and maybe we can work on some serious projects next time if we get along.Skype me preferrably at Skype User ID: viewtendence
  5. Hy, I tried to read filenames of zip file. I use the jszip libaray to see the fileneams and check name and type, BUT the libaray can't show me the size of files. or i don't know how i can see it. Does anybody knows a zip libary, which is easy to use? i don't want compress and uncompress, only read the files and their properties..... thank you
  6. This topic goal is to inknowledge each person who read the post and to hopefully coerce them into sharing by posting too.I'll like to start out with mentioning untiy. I just briefly look over it in wiki. Have anyone ever use it for web development?
  7. I am not a accomplished js programmer. I am trying to get JS to fill a input box with today's date when a button is clicked. I am using Google Chrome. For some reason the code causes a form submit which I do not want because I would like other form input fields to be able to be filled in. I have done quite a few other js forms and never had this problem. What am I doing wrong? <?phpecho "<HTML> <head> <script type='text/javascript'> function bankdate() { document.getElementById('bankdate').value=Date(); } function invoiceda
  8. I'm trying to load an xml file into an html file using jquery... i'm using jquery bc the site is built in Adobe's Business Catalyst and doesnt allow for any server-side scripting languages. The XML fIle is broken down into five sections - Corporation Builder Subdivision Plan and Spec- with child nodes within themThe following node names are in the following format (Parent Child). The data that I am trying to display are the: "Builder BrandName", "Spec SpecStreet1", "Spec SpecPrice", "Subdivision SubParentName", "Plan Description", "Spec SpecElevationImage", "Spec SpecBedrooms", "Spec Spe
  9. Luciana

    Help

    Guys, good morning. I am looking for a long time this helps, I found this forum and hope I succeed in this quest is the following, http://studioplanoverde.com.br/site/ this link, or by clicking the PORTFOLIO menu, it goes to down in the page itself and show some pictures, and when you click on top of the image, it opens, it opens only remaining on the page itself, what I need and MUCH, is that when you open the image, it may rise slightly, why is paying attention, the image opens but gets half of the page, then you have to go down a little scroll rod. I finally found the file for this pu
  10. Is it possible to print an image (send it to a users printer) that is not on the current page? I have an application which uploads an image to a server, then a js function which currently opens the image alone in a new window, where I am then printing the image from. However instead of this, I would prefer the user stay on their current page, and have the print dialogue pop up there, rather than sending them to a new window with just an image. Any help or advice is much appreciated.
  11. help me if you have any idea i am new in development field, pls any one....
  12. Hi every one!!! after a very long time I'm log in to this forum. let's come to the topic, the problem which I'll be experiences is that i'll create the html 5 audio. write my own script to control the playback, works fine! Now I want to know that how we can use the javascript to determined how much data is loaded on the user computer. means that if a file is 20 or 40 MB in size I want to show the progress to the user how much data is loaded on your computer. and up to what time audio can be played smoothly. just like the youtube white progress tells us. any possibility in JS? Help is
  13. Hi, I need to use getElementById to reference to a div which contains a pic and without changing anything in the body tag, a random image slideshow should appear on load! instead of that pic. I have tried different ways to sort it out, but it was never perfect... Got 3 problems, first function changeDiv it says getElementsByTagname(...)[] is not defined... second is in the function rotateimage else document.images.splash undefined... third newimages function overwrites the whole page and it should only change the div anyone could help me out on this one??
  14. Hi please help wiith php code, im trying to retrieve data from a self referencing table types(id,name,parent,desc) this values should be in a drop down list "<li>" in html Thanks in advanced
  15. Hello everyone, I am trying to create a simple slideshow to learn javascript and a small amount of PHP. People are meant to simply upload a photo to their site using for example Filezilla. The website should automaticly take the photo into the slideshow. I am still very novice though. So far I got: + PHP to read the file names in the folder. + Javascript to take over the PHP Array. That is not much.. but I already run into a mistake in the next part. <?php $PhotoSlideAll = scandir('./photos'); $PhotoSlide = array_diff($PhotoSlideAll, array('.', '.
  16. First of all, i am particularly focusing on the cross-reference across files feature. What is it? Simply say, it is like writing Java in Eclipse or Netbeans: When we "dot" a class, a pull down list of member variables show up. When we "ctrl + click" on a usage (of a variable, of a class, of a method, etc), it jumps to the definition of it. I particularly see this feature very helpful, especially when our project goes huge. If we don't need the benefits from this feature, why not use the free and quick editor - Notepad++ ? Many PHP dev tools are equipped with the reference feature. B
  17. forms.js.txtform.txtMailHandler.php.txt I am a photographer with a strong design and coding background trying to make myself a new website.I'm trying to tweak a template to suit my needs, and I am having considerable trouble with the Contact Form page. I am very familiar with html and css, but js is not my strong suit and I have never worked with php before. If anyone could help me by letting me know where/what I need to edit for the submit button to make the form information go to my email I would greatly appreciate it. I have tried editing what I thought was right, and it still doesn
  18. I have run the gradient creation code on its own as the page loads, but now I want to use it in a button click event, so I have tried to enclose it as a function that the button onclick event calls. I get no response at all so I assume I need to pass something in as a parameter, but I cant see what. or does it need an event listener somewhere? index.html testprojectcss.css
  19. Ok i'm totaly new here, I play with some code when I have time for it... But I'm a little confused, it seems that the new ajax way is coded as $.ajax but that I don't understand yet, Because i'm adjusting some existing code I have to go from one php file to another over js the old way... So I have a php file where I echo a div with an input as type="text" and id="txtnameposition", in the same div I have a button who is calling the function closeandmail in the JS file. In the JS file I get de input of the textbox as: var jsName = document.getElementById("txtnameposition").value;
  20. Hi,I am not an IT guy (I am a paleontologist =) and my mother-tongue is not English. I have built few small websites: for instance, one for an open access scientific journal, that I am keeping on maintaining and upgrading. For some of them I have had the possibility to use PHP and MySQL (I manage to write .inc and .php files, but obviously it is not me but my IT colleagues at the University who take care of the server issues!). For other sites I can only use HTML (no PHP, no PERL, no ASP, ...). Therefore sometimes I have to manipulate a little javascript and when I combine pieces of code I ge
  21. Hello people, I'm a new member here and this is my first post. I have a form with 3 fields (UserID, UserFirstname, UserSurname). I want a jquery validation script that would check if the UserID entered is in the database. If TRUE it should echo "Valid UserID" and If FALSE it should echo "Invalid UserID" I have the following codes but it seems not to be executing the PHP File. ///Sign Up Form<div id="form"><form method="post" action="validate.php" id="formID"> <table width="351" height="155" border="0"> <tr> <td width="103">Sign Up Level<span class="styl
  22. Hi! I am making a little game for iOS using apache's Cordova.I use Zepto.js as a light css3 jQuery replacement for animations etc. Players have to create letters as Wim Crouwel did in his New Alphabet, they have to do it in a short amount of time, thus far the project is going fine for the limited skills i have but now i am encountering a problem and i dont know where it could come from. What happens is that when i validate if a letter hase been constructed correctly and it is in fact correct it adds 2 "levels" instead of just 1, what i discovered is that the script actually runs twice. It eve
  23. Hi, i need help for this error, I keep getting this error -->> "Unable to get value of the property 'innerHTML': object is null or undefined" when am running the program in IE & nothing is running in other web browsers... Below is the javascript (JScript.js) code: var output = document.getElementById('output'), pressed = {}; window.onkeydown = function (e) { if (pressed[e.which]) return; pressed[e.which] = e.timeStamp;}; window.onkeyup = function (e) { if (!pressed[e.which]) return; var duration = (e.timeStamp - pressed[e.which]) / 1000; output.innerHTML += '<p
  24. http://jsbin.com/azipok/2/edit this piece of code does the trick of clearing up the option list of select menu and adding a "test" message, but this message becomes visible only upon dropping down the select menu. is there a way to make this "test" message display and replace the "no modules..." text upon clicking the button?
  25. OK, I have hit a snag and I want to try and make this work if I can. I am trying to add a new text field next to a current list field based on a single selected item. can anyone help me on this? I added the segments that I want this to change. *script* function DbRole(myform){if (document.myform.Accesslevel1.value=="Database Role = "){document.myform.Accesslevel1("DbRole1").setValue(""); AddFields();}} *form* <input name="Accessgroups1" type="text" size="50"> <select name="Accesslevel1"> <option value=""></option> <option value="Read">Read</option>
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