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  • What are the benefits of prototypal inheritance over classical?

    - by Pierreten
    So I finally stopped dragging my feet all these years and decided to learn JavaScript "properly". One of the most head-scratching elements of the languages design is it's implementation of inheritance. Having experience in Ruby, I was really happy to see closures and dynamic typing; but for the life of me can't figure out what benefits are to be had from object instances using other instances for inheritance.

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  • Are these jobs for developer or designers or for client itself? for a web-site projects

    - by jitendra
    Spell checking grammar checking Descriptive alt text for big chart , graph images, technical images To write Table summary and caption Descriptive Link text Color Contrast checking Deciding in content what should be H2 ,H3, H4... and what should be <strong> or <span class="boldtext"> Meta Description and keywords for each pages Image compression To decide Filenames for images,PDf etc To decide Page's <title> for each page

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  • IE6 CSS tooltip not appearing

    - by Lauren
    I'm using a tooltip that works in FF, Chrome, and IE7-8, but in IE6 it doesn't appear. You can go to this page http://www.avaline.com/ Bags/ Eco-Friendly-Bags/R1500 and login with [email protected] password:test02, then hit the "add to cart" button and hover over the question marks to see (or not see) the tooltips. This is the relevant HTML and CSS: <DIV class=oewBox id=oewImpLocDiv style="BACKGROUND-IMAGE: url(/images/img/org4.gif)"> <A class=tooltip href="#"><SPAN class=""><STRONG>More than 2 imprint locations?</STRONG> Test </SPAN></A> </DIV> <style> /* Rule from element "style" attribute */ element.style { BACKGROUND-IMAGE: url(/images/img/org4.gif) } /* Rule N°8 from inline stylesheet */ .oewBox { PADDING-RIGHT: 8px; PADDING-LEFT: 40px; PADDING-BOTTOM: 16px; MARGIN: 0px 0px 6px; PADDING-TOP: 6px; BORDER-BOTTOM: #ff7c14 3px solid } /* Rule N°7 from inline stylesheet */ .oewBox { BACKGROUND-POSITION: 0px 0px; BACKGROUND-IMAGE: none; BACKGROUND-REPEAT: no-repeat } /* Rule N°11 from /site/av-files/mainstyles.css */ A:active { COLOR: #3b88c4; TEXT-DECORATION: none } /* Rule N°10 from /site/av-files/mainstyles.css */ A:hover { COLOR: #000; TEXT-DECORATION: none } /* Rule N°9 from /site/av-files/mainstyles.css */ A:visited { COLOR: #3b88c4; TEXT-DECORATION: underline } /* Rule N°8 from /site/av-files/mainstyles.css */ A:link { COLOR: #3b88c4; TEXT-DECORATION: underline } /* Rule N°7 from /site/av-files/mainstyles.css */ A { COLOR: #3b88c4; TEXT-DECORATION: underline } /* Rule N°52 from inline stylesheet */ A.tooltip { BACKGROUND: url(/images/img/question.gif) no-repeat; FLOAT: right; WIDTH: 19px; HEIGHT: 20px } /* Rule N°54 from inline stylesheet */ A.tooltip:hover SPAN { BORDER-RIGHT: #ff7c14 1px solid; BORDER-TOP: #ff7c14 1px solid; DISPLAY: inline; BACKGROUND: #ffffff; BORDER-LEFT: #ff7c14 1px solid; COLOR: #000; BORDER-BOTTOM: #ff7c14 1px solid; POSITION: absolute } /* Rule N°53 from inline stylesheet */ A.tooltip SPAN { PADDING-RIGHT: 3px; DISPLAY: none; PADDING-LEFT: 3px; FONT-WEIGHT: normal; FONT-SIZE: 11px; PADDING-BOTTOM: 2px; MARGIN-LEFT: -245px; WIDTH: 230px; PADDING-TOP: 2px } </style>

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  • Aiming Netbeans code snippets

    - by rwallace
    Not quite sure whether I'm using the right terminology here, but Netbeans has a very nice feature where e.g. if you start typing for it will offer to write a code fragment looping over an array or list, basing it on the name and type of an array or list variable actually in scope. If more than one such variable is in scope it will guess, sometimes correctly and sometimes not. Is there a way to aim this feature at the correct array/list variable?

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  • Why Constant Keyword is not introduced In Java?

    - by harigm
    I am curious learner of Java, I was thinking on one topic "CONSTANTS" I have learnt that Java allows us to declare constants by using "Final" keyword. My question is Java didnot introduce Constant(Const) Keyword. Since many people say it has come from C++, in C++ we have Const keyword Is there any strong reason behind, Please share your thoughts on this.

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  • What is the difference between NULL in C++ and null in Java?

    - by Stephano
    I've been trying to figure out why C++ is making me crazy typing NULL. Suddenly it hits me the other day; I've been typing null (lower case) in Java for years. Now suddenly I'm programming in C++ and that little chunk of muscle memory is making me crazy. Wikiperipatetic defines C++ NULL as part of the stddef: A macro that expands to a null pointer constant. It may be defined as ((void*)0), 0 or 0L depending on the compiler and the language. Sun's docs tells me this about Java's "null literal": The null type has one value, the null reference, represented by the literal null, which is formed from ASCII characters. A null literal is always of the null type. So this is all very nice. I know what a null pointer reference is, and thank you for the compiler notes. Now I'm a little fuzzy on the idea of a literal in Java so I read on... A literal is the source code representation of a fixed value; literals are represented directly in your code without requiring computation. There's also a special null literal that can be used as a value for any reference type. null may be assigned to any variable, except variables of primitive types. There's little you can do with a null value beyond testing for its presence. Therefore, null is often used in programs as a marker to indicate that some object is unavailable. Ok, so I think I get it now. In C++ NULL is a macro that, when compiled, defines the null pointer constant. In Java, null is a fixed value that any non-primitive can be assigned too; great for testing in a handy if statement. Java does not have pointers, so I can see why they kept null a simple value rather than anything fancy. But why did java decide to change the all caps NULL to null? Furthermore, am I missing anything here?

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  • How do i know what unixtime a php session will expire?

    - by Steve
    Hi How do I know how many seconds it will be until a php session expires? I'm building a web application where users might spend a lot of time typing into big text fields, but for security reasons I still want sessions to time out after a reasonably short period. I want to warn them if their session is about to expire so they can save or take some other action to keep it alive. Any tips? thanks!

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  • JAVA-how to manually compose a MIME multipart message

    - by Augusto Picciani
    I need to compose manually a MIME multipart message. I don't need to use any library to doing it. I'm trying this without success: out.println("From:myemail@mydomain"); out.flush(); out.println("To:myemail@mydomain"); out.flush(); out.println("Date:Thu, 25 Nov 2011 01:00:50 +0100"); out.flush(); out.println("Subject:manual test 269"); out.flush(); out.println("MIME-version:1.0"); out.flush(); out.print("Content-Type: multipart/mixed; boundary=\"1234567\"\n\n"); out.println("--1234567"); out.flush(); out.println("Content-Type: text/plain; charset:utf-8"); out.flush(); out.print("Content-Transfer-Encoding: 7bit\n\n"); out.flush(); out.print("test message\n\n"); out.flush(); out.println("--1234567"); out.flush(); out.println("Content-Type: text/html; charset:utf-8"); out.flush(); out.print("Content-Transfer-Encoding: 7bit\n\n"); out.flush(); out.print("<p><strong>test message in html</strong></p>\n\n"); out.flush(); out.println("--1234567--"); out.flush(); out.print("\r\n.\r\n"); out.flush(); Problem is that my mail client see the headers (from,subject,date,ecc.) but it doesn't see the message body. If i try without multipart it works fine. Maybe problem is in whitespaces character.

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  • How to program and calculate multiple subtotal and grandtotal using jquery?

    - by Victor
    I'm stump figuring out how to do this in jquery, I need to do it without any plug-in. Imagine a shopping cart for books, each change of quantity (using select dropdown) will update the total price, grandtotal and then the hidden input value. <table> <tr> <td class="qty"> <select class="item-1"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> ... </select> </td> <td class="product"> Book 1 </td> <td class="price-item-1"> $20 </td> <td class="total-item-1"> $20 </td> </tr> <tr> <td class="qty"> <select class="item-2"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> ... </select> </td> <td class="product"> Book 2 </td> <td class="price-item-2"> $10 </td> <td class="total-item-2"> $10 </td> </tr> ... ... <tr> <td colspan="3" align="right"> <strong>Grand Total:</strong> </td> <td class="grandtotal"> </td> </tr> </table> <input type="hidden" id="qty-item-1" value="0" /> <input type="hidden" id="total-item-1" value="0" /> <input type="hidden" id="qty-item-2" value="0" /> <input type="hidden" id="total-item-2" value="0" />

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  • Weighted Average and Ratings

    - by Danten
    Maths isn't my strong point and I'm at a loss here. Basically, all I need is a simple formula that will give a weighted rating on a scale of 1 to 5. If there are very few votes, they carry less influence and the rating pressess more towards the average (in this case I want it to be 3, not the average of all other ratings). I've tried a few different bayesian implementations but these haven't worked out. I believe the graphical representation I am looking for could be shown as: ___ / ___/ Cheers

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  • How to remove files and directories quickly

    - by None
    I am using a mac. When I use the "rm" command it can only remove files. The "rmdir" command only removes empty folders. If you have a directory with files and folders with files and folders in them and so on. Is there anyway to delete all the files and folders without all the strenuous command typing? Remember, I am using the mac bash shell from terminal, not Microsoft DOS or linux.

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  • High-level languages for out-of-the-box GUI desktop application programming

    - by Omeoe
    After I discontinued programming in C++ while entering into web authoring I was spoilt by PHP's high level constructs like hash tables or its dynamic, weak typing. I remembered the angst of C/C++ pointers and the maze of low-level Win32 API handles and message loops and that prevented me from utilizing environments like Code::Blocks for desktop applications. I am also not very fond of bulky, statically-typed C#/.NET environment. Any other ideas?

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  • css/html: white space break fix and now cant code fine?

    - by Karem
    Yes, so I got the problem that if you type a long sentence with no space e.g eeeeeeeeeeeeeeeeeeeeeeee, it will break itself, but then now I would need to start typing some ugly non-breaking coding. Example: http://jsfiddle.net/r3CFJ/ I need to have everything in one sentence in order not to make it break itself. Check here to see the result of not having everything in one sentence: http://jsfiddle.net/r3CFJ/1/ How can I fix this please any solutions?? as my further coding will get very ugly and not readable?

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  • LINQ statement as if condition

    - by dotnetdev
    I saw a piece of code which was written like this: if (from n in numbers select n where n = 5) However, I tried writing something like this but came across errors (bare in mind the code sample may not be exactly as above as I am typing from memory). How can I write code like the above? Thanks

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  • What's the point of delay signing of an .NET assembly?

    - by smwikipedia
    I noticed that after I use AssemblyDelaySignAttribute to indicate that an assembly is in development and does not need to be signed now, I'll have to use sn -Vr foolib.dll to register for strong name verification to be turned off for this assembly. What's the point of doing this circle? Why not just leave the assembly unsigned until it's fully done? Isn't that less bothering?

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  • Trying to filter a ListView with runQueryOnBackgroundThread but nothing happens - what am I missing?

    - by Ian Leslie
    I have a list of countries in a database. I have created a select country activity that consists of a edit box for filtering and a list which displays the flag and country name. When the activity starts the list shows the entire list of countries sorted alphabetically - works fine. When the customer starts typing into the search box I want the list to be filtered based on their typing. My database query was previously working in an AutoCompleteView (I just want to switch to a separate text box and list) so I know my full query and my constraint query are working. What I did was add a TextWatcher to the EditText view and every time the text is changed I invoke the list's SimpleCursorAdapter runQueryOnBackgroundThread with the edit boxes text as the constraint. The trouble is the list is never updated. I have set breakpoints in the debugger and the TextWatcher does make the call to runQueryOnBackgroundThread and my FilterQueryProvider is called with the expected constraint. The database query goes fine and the cursor is returned. The cursor adapter has a filter query provider set (and a view binder to display the flag): SimpleCursorAdapter adapter = new SimpleCursorAdapter (this, R.layout.country_list_row, countryCursor, from, to); adapter.setFilterQueryProvider (new CountryFilterProvider ()); adapter.setViewBinder (new FlagViewBinder ()); The FitlerQueryProvider: private final class CountryFilterProvider implements FilterQueryProvider { @Override public Cursor runQuery (CharSequence constraint) { Cursor countryCursor = myDbHelper.getCountryList (constraint); startManagingCursor (countryCursor); return countryCursor; } } And the EditText has a TextWatcher: myCountrySearchText = (EditText)findViewById (R.id.entry); myCountrySearchText.setHint (R.string.country_hint); myCountrySearchText.addTextChangedListener (new TextWatcher() { @Override public void afterTextChanged (Editable s) { SimpleCursorAdapter filterAdapter = (SimpleCursorAdapter)myCountryList.getAdapter (); filterAdapter.runQueryOnBackgroundThread (s.toString ()); } @Override public void onTextChanged (CharSequence s, int start, int before, int count) { // no work to do } @Override public void beforeTextChanged (CharSequence s, int start, int count, int after) { // no work to do } }); The query for the database looks like this: public Cursor getCountryList (CharSequence constraint) { if (constraint == null || constraint.length () == 0) { // Return the full list of countries return myDataBase.query (DATABASE_COUNTRY_TABLE, new String[] { KEY_ROWID, KEY_COUNTRYNAME, KEY_COUNTRYCODE }, null, null, null, null, KEY_COUNTRYNAME); } else { // Return a list of countries who's name contains the passed in constraint return myDataBase.query (DATABASE_COUNTRY_TABLE, new String[] { KEY_ROWID, KEY_COUNTRYNAME, KEY_COUNTRYCODE }, "Country like '%" + constraint.toString () + "%'", null, null, null, "CASE WHEN Country like '" + constraint.toString () + "%' THEN 0 ELSE 1 END, Country"); } } It just seems like there is a missing link somewhere. Any help would be appreciated. Thanks, Ian

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  • jQuery - addClass or removeClass - Is there an append class?

    - by iamtheratio
    I have css hover over images for my tabs and I'm trying to get the class to change from .how to .how_on when I click on the image HOW. My tabs are HOW | WHAT | WHEN | WHO | WHY I have classes for each (.how, .how_on), (.what, .what_on), etc... Can I make jQuery add _on to the original class name using click(function(){}); ? HTML: <div id="tab_container"> <ul class="tabs"> <li><a class="how_on" href="#how">How</a></li> <li><a class="why" href="#why">Why</a></li> <li><a class="what" href="#what">What</a></li> <li><a class="who" href="#who">Who</a></li> <li><a class="when" href="#when">When</a></li> </ul> <p><img src="images/tab_top.jpg" width="864px" height="6px" alt="" border="0" /></p> </div> <div class="tab_body"> <!-- HOW --> <div id="how" class="tab"> <strong>HOW IT WORKS:</strong> </div> JQUERY: <script type="text/javascript"> jQuery(document).ready(function(){ //if this is not the first tab, hide it jQuery(".tab:not(:first)").hide(); //to fix u know who jQuery(".tab:first").show(); //when we click one of the tabs jQuery(".tabs a").click(function(){ //get the ID of the element we need to show stringref = jQuery(this).attr("href").split('#')[1]; // adjust css on tabs to show active tab //hide the tabs that doesn't match the ID jQuery('.tab:not(#'+stringref+')').hide(); //fix if (jQuery.browser.msie && jQuery.browser.version.substr(0,3) == "6.0") { jQuery('.tab#' + stringref).show(); } else //display our tab fading it in jQuery('.tab#' + stringref).fadeIn(); //stay with me return false; }); }); </script>

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  • Are there any programming related diseases?

    - by Ranhiru
    When you play Tennis, you have the risk of getting tennis elbow... In the sea, you can get sea-sick... Are there any programmer/programming related sicknesses out there? Apart from carpal tunnel syndrome which happens from excessive typing, back pains and eye strains from sitting in one place and never moving your body/eyes. are there any phobias, disorders etc??

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  • Textarea overflow-x when a user copy-pastes into it?

    - by Logan
    Hi, I have a textarea with overflow-x: auto; attributed to it. It works great when a user is typing text into the box by hand. When a user copy pastes a line from a file, however, that is bigger than my textarea, the overflow-x property does not work, instead the textarea wordwraps the long line. Is there a way (maybe javascript) to make overflow-x work on copy-paste? Thanks.

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