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  • JQuery. Check value of select box and textbox with same class, Is it possible?

    - by Cesar Lopez
    I have several select boxes and textboxes with the same class and I have the following statement. if ($('.selTxtClass:visible').val() == "") { $('.selTxtClass:visible').focus(); } } If I do an alert with ($('.selTxtClass:visible').val()) it comes as undefined. I want to check that the value of these elements are empty, but I cant see what is wrong with this if statement, could you give me a hand, please? Thanks a lot.

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  • PropertyChanged Event of ObservableCollection

    - by developer
    Hi All, I have a observable collection of viewmodel objects. How can I subscribe to the Property Changed event of each view model in my collection as they are created and track which ones have been changed, so that I can updated them to my database. List<DomainObject> objectsToSave = new List<DomainObject>(); foreach (Test val in dirtyObjs) { objectsToSave.AddRange(val.GetObjectsToSave()); } //DB changes bool saveSucceeded = DataServices.SaveMultiple(objectsToSave);

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  • jQuery ajax : error while passing variables in data

    - by Tristan
    Hello, just a quick question : var h = $('#hebergeurJQUERY').val(); var t = $('#typeJQUERY').val(); function requestData() { $.ajax({ type: "GET", url: '12months/months.php', data : "hosting="+h+"&type="+t+"", ...... doesnt work while data : "hosting=Something&type=Something", Works. Any idea to something stupid i did (again ?) ;) Thanks

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  • Simple Form validation failing Backbone

    - by Corey Buchillon
    Im not exactly adept at coding so Im probably missing something, but my view here is failing to refuse submission when one or both of the fields are empty. I have a feeling something isnt connected right to my template for the row and the view of the form Form = Backbone.View.extend({ //form vie el: '.item-form', initialize: function(){ }, events: { 'click #additem': 'addModel' }, addModel: function(itemName, price){ // simple validation before adding to collection if (itemName !="" && price !="" ){ var item = new Item({ itemName: this.$("#item").val(), price: this.$("#price").val()}); items.add(item); $("#message").html("Please wait; the task is being added."); item.save(null, {success: function (item, response,options) { item.id= item.attributes._id.$id; item.attributes.id = item.attributes._id.$id; new ItemsView({collection: items}); $("#message").html(""); } }); this.$("#item").val(''); this.$("#price").val(''); } else { alert('Please fill in both fields'); } } }); and HTML <table class="itemTable"> <thead> <tr> <th>Item</th> <th>Price</th> <th></th> </tr> </thead> <tbody class="tableBody"> <script type="text/template" id="table-row"> <td><%= itemName %></td> <td><%= price %></td> <td><button class="complete">Complete</button> <button class="remove">Remove</button></td> </script> </tbody> </table> <form class="item-form"> <input type="text" name="item" id="item" placeholder="Item"/> <!-- goes to itemName in the template for the body --> <input type="text" name="price" id="price" placeholder="Price" /><!--goes to price in the template for the body --> <button type="button" id="additem">Add</button> </form> <div id="message"></div>

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  • Scala: can't write setter without getter?

    - by IttayD
    This works: class ButtonCountObserver { private var cnt = 0 // private field def count = cnt // reader method def count_=(newCount: Int) = cnt = newCount // writer method // ... } val b = new ButtonCountObserver b.count = 0 But this doesn't class ButtonCountObserver { private var cnt = 0 // private field def count_=(newCount: Int) = cnt = newCount // writer method // ... } val b = new ButtonCountObserver b.count = 0 I get: error: value count is not a member of ButtonCountObserver Is it possible to create a setter (with the syntactic sugar) without a getter?

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  • Django: Template should render 'description' not actual value

    - by Till Backhaus
    Hi, in a Model I have a CharField with choices: class MyModel(models.Model): THE_CHOICES=( ('val',_(u'Value Description')), ) ... myfield=models.CharField(max_length=3,choices=THE_CHOICES Now in the template I access an instance of MyModel: {{ my_instance.myfield }} Of course the gives me val instead of Value Description. How do I get the description? Thanks in advance!

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  • Problem with jquery ajax form on Codeigniter

    - by Code Burn
    Everytime I test the email is send correctly. (I have tested in PC: IE6, IE7, IE8, Safari, Firefox, Chrome. MAC: Safari, Firefox, Chrome.) The _POST done in jquery (javascript). Then when I turn off javascript in my browser nothing happens, because nothing is _POSTed. Nome: Jon Doe Empresa: Star Cargo: Developer Email: [email protected] Telefone: 090909222988 Assunto: Subject here.. But I keep recieving emails like this from costumers: Nome: Empresa: Cargo: Email: Telefone: Assunto: CONTACT_FORM.PHP <form name="frm" id="frm"> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Nome<font style="color:#EE3063;">*</font></div> <div class="campoFormulario inputDeCampo" ><input class="texto textocinzaescuro" size="31" name="Cnome" id="Cnome" value=""/></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Empresa<font style="color:#EE3063;">*</font></div> <div class="campoFormulario inputDeCampo" ><input class="texto textocinzaescuro" size="31" name="CEmpresa" id="CEmpresa" value=""/></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Cargo</div> <div class="campoFormulario inputDeCampo" ><input class="texto textocinzaescuro" size="31" name="CCargo" id="CCargo" value=""/></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Email<font style="color:#EE3063;">*</font></div> <div class="campoFormulario inputDeCampo" ><input class="texto textocinzaescuro" size="31" name="CEmail" id="CEmail" value=""/></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Telefone</div> <div class="campoFormulario inputDeCampo" ><input class="texto textocinzaescuro" size="31" name="CTelefone" id="CTelefone" value=""/></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >Assunto<font style="color:#EE3063;">*</font></div> <div class="campoFormulario inputDeCampo" ><textarea class="texto textocinzaescuro" name="CAssunto" id="CAssunto" rows="2" cols="28"></textarea></div> <div class="campoFormulario nomeDeCampo texto textocinzaescuro" >&nbsp;</div> <div class="campoFormulario inputDeCampo" style="text-align:right;" ><input id="Cbutton" class="texto textocinzaescuro" type="submit" name="submit" value="Enviar" /></div> </form> <script type="text/javascript"> $(function() { $("#Cbutton").click(function() { if(validarForm()){ var Cnome = $("input#Cnome").val(); var CEmpresa = $("input#CEmpresa").val(); var CEmail = $("input#CEmail").val(); var CCargo = $("input#CCargo").val(); var CTelefone = $("input#CTelefone").val(); var CAssunto = $("textarea#CAssunto").val(); var dataString = 'nome='+ Cnome + '&Empresa=' + CEmpresa + '&Email=' + CEmail + '&Cargo=' + CCargo + '&Telefone=' + CTelefone + '&Assunto=' + CAssunto; //alert (dataString);return false; $.ajax({ type: "POST", url: "http://www.myserver.com/index.php/pt/envia", data: dataString, success: function() { $('#frm').remove(); $('#blocoform').append("<br />Obrigado. <img id='checkmark' src='http://www.myserver.com/public/images/estrutura/ok.gif' /><br />Será contactado brevemente.<br /><br /><br /><br /><br /><br />") .hide() .fadeIn(1500); } }); } return false; }); }); function validarForm(){ var error = 0; if(!validateNome(document.getElementById("Cnome"))){ error = 1 ;} if(!validateNome(document.getElementById("CEmpresa"))){ error = 1 ;} if(!validateEmail(document.getElementById("CEmail"))){ error = 1 ;} if(!validateNome(document.getElementById("CAssunto"))){ error = 1 ;} if(error == 0){ //frm.submit(); return true; }else{ alert('Preencha os campos correctamente.'); return false; } } function validateNome(fld){ if( fld.value.length == 0 ){ fld.style.backgroundColor = '#FFFFCC'; //alert('Descrição é um campo obrigatório.'); return false; }else { fld.style.background = 'White'; return true; } } function trim(s) { return s.replace(/^\s+|\s+$/, ''); } function validateEmail(fld) { var tfld = trim(fld.value); var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ; var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ; if (fld.value == "") { fld.style.background = '#FFFFCC'; //alert('Email é um campo obrigatório.'); return false; } else if (!emailFilter.test(tfld)) { //alert('Email inválido.'); fld.style.background = '#FFFFCC'; return false; } else if (fld.value.match(illegalChars)) { fld.style.background = '#FFFFCC'; //alert('Email inválido.'); return false; } else { fld.style.background = 'White'; return true; } } </script> FUNCTION ENVIA (email sender): function envia() { $this->load->helper(array('form', 'url')); $nome = $_POST['nome']; $empresa = $_POST['Empresa']; $cargo = $_POST['Cargo']; $email = $_POST['Email']; $telefone = $_POST['Telefone']; $assunto = $_POST['Assunto']; $mensagem = " Nome:".$nome." Empresa:".$empresa." Cargo:".$cargo." Email:".$email." Telefone:".$telefone." Assunto:".$assunto.""; $headers = 'From: [email protected]' . "\r\n" . 'Reply-To: no-reply' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail('[email protected]', $mensagem, $headers); }

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  • How to get the value of the input element of live of Value

    - by Aruna
    HI, i am having a Input hidden element like in my JQuery i am setting the value for the above input type after some ajax call like EDIT::: $.ajax({ type: "POST", url: "http://localhost/FormBuilder/index.php/forms/saveForm/", async: false, data: "formname="+formname+"&status="+status, success: function(msg){$("#FormID").val(msg); }//success });//ajax Now somewhere in the code after this i want to fetch the value of this FIeld.How to get this value on live of value for this input type.. EDIT::: i am retriving like by var FORMID=$("#FormID").val();//but shows null How to get the value of it on live of this Input element

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  • handling javaScript alerts when running a selenium test?

    - by Mo
    Hi I am am running some selenium tests(ruby) on my web page and as i enter an invalid characters in to a text box i have the JavaScript throw a alert like so if(isNaN($(this).val()) || Number($(this).val().valueOf() <=0)){ alert("Please Enter A Number"); } how can i handle this alert when its made and close the pop up? i tried to use the wait_for_pop_up() and close() but i think that's only for browser pop up's and not JavaScript alerts. any ideas? thanks

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  • Using hidden values with jQuery (and ASP.NET MVC) -- not working?

    - by SlackerCoder
    Im using a couple of JSON calls to render data, etc etc. In order to keep the proper key value, I am storing it in a tag. I have this in several places in my code, none of which cause an issue like this one is. Here is the jQuery: The call that "sets" the value: $("a[id^='planSetupAddNewPlan']").live('click', function() { var x = $(this).attr('id'); x = x.substring(19); $("#hidPlanSetupCurrentGroupKey").val(x); $.getJSON("/GroupSetup/PlanSetupAddNewList", { GroupKey: x }, function(data) { $("#planSetupAddNew").html('' + data.TableResult + ''); alert('First Inside 2 ' + x); $.blockUI({ message: $("#planSetupAddNew") }); }); }); The call that "gets" the value: $("#ddlPlanSetupAddNewProduct").live('change', function() { var a = $("#hidPlanSetupCurrentGroupKey").val(); var prod = $(this).val(); alert(a); $.getJSON("/GroupSetup/PlanSetupChangePlanList", { GroupKey: a, Product: prod }, function(data) { if (data.Message == "Success") { $("#planSetupAddNewPlan").html('' + data.TableResult + ''); } else if (data.Message == "Error") { //Do something } }); }); Here is the html in question: <div id="planSetupAddNew" style="display:none; cursor: default;"> <input type="hidden" id="hidPlanSetupCurrentGroupKey" /> <div id="planSetupAddNewData"> </div> </div> In the first section, the alert ('First Inside 2 ' + x) returns what I expect (where x = the key value), and if I add a line to display the contents of the hidden field, that works as well: ie. var key = $("#hidPlanSetupCurrentGroupKey").val(); alert(key); In the "alert(a);" call, I am getting "undefined". I have looked at the other code in the same view and it is the same and it works. I must be missing something, or have some sort of mistype that I havent caught. Just an overview of the controller events: The first call (/GroupSetup/PlanSetupAddNewList) will return an html string building a "form" for users to enter information into. The second call (/GroupSetup/PlanSetupChangePlanList) just changes a second dropdown based on the first dropdown selection (overwriting the html in the div). If you need more info, let me know! Any thoughts/tips/pointers/suggestions?!?! Thanks for all your help :)

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  • how to do multi insert and obtain ids

    - by liysd
    hi, I want to insert some data into a table (id PK autoincrement, val) with use multi insert INSERT INTO tab (val) VALUES (1), (2), (3) Is it possible to obtain a table of last inserted ids? I'm asking becouse I'm not sure if all will in this form: (n, n+1, n+2). I use mysql inodb.

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  • Is scala's cake pattern possible with parametrized components?

    - by Nicolas
    Parametrized components work well with the cake pattern as long as you are only interested in a unique component for each typed component's, example: trait AComponent[T] { val a:A[T] class A[T](implicit mf:Manifest[T]) { println(mf) } } class App extends AComponent[Int] { val a = new A[Int]() } new App Now my application requires me to inject an A[Int] and an A[String], obviously scala's type system doesn't allow me to extends AComponent twice. What is the common practice in this situation ?

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  • MySQL function to compare values in a db table against the previous

    - by Stuart
    Iam quite new to functions in SQL and I would like to create a function to compare values in a MySQL table against previous and I am not sure how to do this. For example (iId is the input value) DECLARE pVal INT(20); DECLARE val INT(20); SELECT price INTO pVal FROM products WHERE Id=iId; SELECT price FROM products; IF price == pVal THEN SET val = price; END IF; Thanks

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  • jQuery update Google Map

    - by Beardy
    I am trying to update a google map v3 with jQuery and at the moment it loads the map but when .preview is clicked the map scaled to the width and height and then goes grey. $('.preview').click(function(){ var width = $('#width').val(); var height = $('#height').val(); $('#map').css({ 'width':width, 'height':height }); var mapElement = document.getElementById('map'); var updateOptions = { zoom: 6 } var map = new google.maps.Map(mapElement, updateOptions); });

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  • Update textarea with jquery

    - by bocca
    Trying to get current data from textarea with jquery and replace it with what server returns. so far q value is picked up right, intead of updating it with server returned content, it just replaces it with ' ' q = $('textarea#id_message').val(); alert(q) $("textarea#id_message").val('&nbsp;').load( '/process/url?html=' + q ); Update just tried it passing server data to test results div, this does work, textarea does not $( '#results' ).html( '&nbsp;' ).load( '/process/url?html=' + q );

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  • javascript accordian menu problem in worpress

    - by Praveen kalal
    hi all i am working on wordpress project there is i used accordion for right sidebar but all the link are over lapping each other in IE8 its working fine mozzila so plz help my code is var parentAccordion=new TINY.accordion.slider("parentAccordion"); parentAccordion.init("acc","h4",1,-1); var nestedAccordion=new TINY.accordion.slider("nestedAccordion"); nestedAccordion.init("nested","h4",1,-1,"acc-selected"); $args = array('parent'=>0,'hide_empty'=>0); $cats = get_categories($args); echo '<ul id="acc" class="acc">'; foreach($cats as $key => $val) { $args1=array( 'showposts' => 10, 'category__in' => array($val->term_id), 'caller_get_posts'=>1 ); $post=get_posts($args1); echo '<li><h4>'.$val->name.'</h4>'; echo '<div class="" style="opacity: 0; height: auto;">'; echo '<ul id="nested" class="acc">'; if(isset($post) && !empty($post)) { foreach($post as $key1 => $val1) { echo '<li class="cat-item"><a title='.$val1->post_title.' href='.$val1->guid.'>'.$val1->post_title.'</a>'; } } $subcats = get_categories(array('parent'=>$val->term_id,'hide_empty'=>0)); if(isset($subcats) && !empty($subcats)) { foreach($subcats as $k => $v) { echo '<li><h4 class="">'.$v->name.'</h4>'; $args2=array( 'showposts' => 10, 'category__in' => array($v->term_id), 'caller_get_posts'=>1 ); $post1=get_posts($args2); if(isset($post1) && !empty($post1)) { echo '<div class="" style="opacity: 1; height: auto;">'; echo '<ul class="children" style="padding-left:15px;">'; foreach($post1 as $key2 => $val2) { echo '<li><a title='.$val2->post_title.' href='.$val2->guid.'>'.$val2->post_title.'</a></li>'; } echo '</ul></div>'; } } } echo "</ul>"; echo "</li>"; } echo '</ul>'; ?> </div> so plz help me

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  • Inheritance of jQuery's prototype partially fails

    - by user1065745
    I want to use Coffeescript to create an UIObject class. This class should inherit from jQuery, so that instances of UIObject can be used as if they where created with jQuery. class UIObject isObject: (val) -> typeof val is "object" constructor: (tag, attributes) -> @merge jQuery(tag, attributes), this @UIObjectProperties = {} merge: (source, destination) -> for key of source if destination[key] is undefined destination[key] = source[key] else if @isObject(source[key]) @merge(source[key], destination[key]) return It partially works. Consider the Foobar class below: class Foobar extends UIObject constructor: -> super("<h1/>", html: "Foobar") $("body").append(new Foobar) works fine. BUT: (new Foobar).appendTo("body") places the tag, but also raises RangeError: Maximum call stack size exceeded. Was it just a bad idea to inherit from jQuery? Or is there a solurion? For those who don't know CoffeeScript, the JavaScript source is: var Foobar, UIObject; var __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }; UIObject = (function () { UIObject.prototype.isObject = function (val) { return typeof val === "object"; }; function UIObject(tag, attributes) { this.merge(jQuery(tag, attributes), this); this.UIObjectProperties = {}; } UIObject.prototype.merge = function (source, destination) { var key; for (key in source) { if (destination[key] === void 0) { destination[key] = source[key]; } else if (this.isObject(source[key])) { this.merge(source[key], destination[key]); } } }; return UIObject; })(); Foobar = (function () { __extends(Foobar, UIObject); function Foobar() { Foobar.__super__.constructor.call(this, "<h1/>", { html: "Foobar" }); } return Foobar; })();

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  • HtmlHelperExtensions are not visible in view mvc3 asp.net

    - by user1299372
    I've added a class for the HTML Custom Extensions: using System; using System.Linq.Expressions; using System.Text; using System.Web.Mvc; using System.Web.Mvc.Html; namespace App.MvcHtmlHelpers { public static class HtmlHelperExtensions { public static MvcHtmlString ComboBox(HtmlHelper html, string name, SelectList items, string selectedValue) { var sb = new StringBuilder(); sb.Append(html.DropDownList(name + "_hidden", items, new { @style = "width: 200px;", @onchange = "$('input#" + name + "').val($(this).val());" })); sb.Append(html.TextBox(name, selectedValue, new { @style = "margin-left: -199px; width: 179px; height: 1.2em; border: 0;" })); return MvcHtmlString.Create(sb.ToString()); } public static MvcHtmlString ComboBoxFor<TModel, TProperty>(HtmlHelper<TModel> html, Expression<Func<TModel, TProperty>> expression, SelectList items) { var me = (MemberExpression)expression.Body; var name = me.Member.Name; var sb = new StringBuilder(); sb.Append(html.DropDownList(name + "_hidden", items, new { @style = "width: 200px;", @onchange = "$('input#" + name + "').val($(this).val());" })); sb.Append(html.TextBoxFor(expression, new { @style = "margin-left: -199px; width: 179px; height: 1.2em; border: 0;" })); return MvcHtmlString.Create(sb.ToString()); } I've also registered it in my site web config: <namespaces> <add namespace="System.Web.Helpers" /> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespace="System.Web.Mvc.Html" /> <add namespace="System.Web.Routing" /> <add namespace="System.Web.WebPages" /> <add namespace="App.MvcHtmlHelpers"/> </namespaces> In my view, I import the namespace: <%@ Import Namespace="RSPWebApp.MvcHtmlHelpers" %> But when I go to call it in the view, it doesn't recognize the custom extension. Can someone help me by telling me what I might have missed? Thanks so much in advance! <%:Html.ComboBoxFor(a => a.Street2, streetAddressListItems) %

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  • Thread-safe equivalent to python's time.strptime() ?

    - by Wells
    Something I wrote throws a lot of AttributeErrors when using time.strptime() inside a thread. This only seems to happen on Windows (not on Linux), but whatever…. Upon a'Googling, it seems that time.strptime() isn't considered thread-safe. Is there a better way to create a datetime object from a string? Current code looks like: val = DateFromTicks(mktime(strptime(val, '%B %d, %Y'))) But, that yields the AttributeErrors as its run inside a thread. Thanks!

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  • Regular expression Not working properly n case of multiple trailing ]]]]

    - by ronan
    I have the requirement that in a textbox a user can jump to the next word enclosed in [] on a tab out for example Hi [this] is [an] example. Testing [this] So when my cursor is at Hi and I do a tab out , the characters enclosed in the [this] are highlighted and when I again do a tabl out th next characters enclosed in following [an] are highlighted. This works fine Now the requirement is whatever the text including the special chars between [] needs to be highlighted case 1: when I have trailing ]]], it only highlights leading [[[ and ignores ]]]] e.g case 2: In case of multiple trailing ] e.e [this]]]] is [test], ideally one a single tabl out from this , it should go to next text enclosed in [] but a user has to tab out 4 times one tab per training ] to go to next [text] strong text The code is $(document).ready(function() { $('textarea').highlightTextarea({ color : '#0475D1', words : [ "/(\[.*?\])/g" ], textColor : '#000000' }); $('textarea').live('keydown', function(e) { var keyCode = e.keyCode || e.which; if (keyCode == 9) { var currentIndex = getCaret($(this).get(0)) selectText($(this), currentIndex); return false; } }); }); function selectText(element, currentIndex) { var rSearchTerm = new RegExp(/(\[.*?\])/); var ind = element.val().substr(currentIndex).search(rSearchTerm) currentIndex = (ind == -1 ? 0 : currentIndex); ind = (ind == -1 ? element.val().search(rSearchTerm) : ind); currentIndex = (ind == -1 ? 0 : currentIndex); var lasInd = (element.val().substr(currentIndex).search(rSearchTerm) == -1 ? 0 : element.val().substr(currentIndex).indexOf(']')); var input = element.get(0); if (input.setSelectionRange) { input.focus(); input.setSelectionRange(ind + currentIndex, lasInd + 1 + currentIndex); } else if (input.createTextRange) { var range = input.createTextRange(); range.collapse(true); range.moveEnd('character', lasInd + 1 + currentIndex); range.moveStart('character', ind + currentIndex); range.select(); } } function getCaret(el) { if (el.selectionEnd) { return el.selectionEnd; } else if (document.selection) { el.focus(); var r = document.selection.createRange(); if (r == null) { return 0; } var re = el.createTextRange(), rc = re.duplicate(); re.moveToBookmark(r.getBookmark()); rc.setEndPoint('EndToStart', re); return rc.text.length; } return 0; } Please let me know to handle two above cases

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  • jQuery Validator - Dynamic Text

    - by James
    Adding a validator to my form: jQuery.validator.addMethod('whatever', function(val, el) { // whatever goes here }, 'A maximum of ' + $('#my_id_here').val() + ' categories can be selected.'); This doesn't fly. I always get undefined. Is this a good, simple way to do this? Thanks

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  • scala implicit or explicit conversion from iterator to iterable

    - by landon9720
    Does Scala provide a built-in class, utility, syntax, or other mechanism for converting (by wrapping) an Iterator with an Iterable? For example, I have an Iterator[Foo] and I need an Iterable[Foo], so currently I am: val foo1: Iterator[Foo] = .... val foo2: Iterable[Foo] = new Iterable[Foo] { def elements = foo1 } This seems ugly and unnecessary. What's a better way?

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  • Double variable argument list.

    - by Lukasz Lew
    I need something like this: class Node (left : Node*, right : Node*) I understand the ambiguity of this signature. Is there a way around it better than the following? class Node (left : Array[Node, right : Array[Node]) val n = new Node (Array(n1, n2), Array(n3)) Maybe some kind of separator like this? val n = new Node (n1, n2, Sep, n3)

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  • How to get Ponter/Reference semantics in Scala.

    - by Lukasz Lew
    In C++ I would just take a pointer (or reference) to arr[idx]. In Scala I find myself creating this class to emulate a pointer semantic. class SetTo (val arr : Array[Double], val idx : Int) { def apply (d : Double) { arr(idx) = d } } Isn't there a simpler way? Doesn't Array class have a method to return some kind of reference to a particular field?

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