Yes, that is prohibited. Just as otherwise you cannot declare variables of differing types in one declaration statement (edit: modulo the declarator modifiers that @MrLister mentions). You can declare structs for (struct { int a = 0; short b = 0; } d; d.a < 10; ++d.a, ++d.b ) {} C++03 code: for (struct { … Read more
This question is old, but for anybody looking for a solution, I built a simple directive to handle this, for vertical and horizontal resizers. Take a look at the Plunker angular.module(‘mc.resizer’, []).directive(‘resizer’, function($document) { return function($scope, $element, $attrs) { $element.on(‘mousedown’, function(event) { event.preventDefault(); $document.on(‘mousemove’, mousemove); $document.on(‘mouseup’, mouseup); }); function mousemove(event) { if ($attrs.resizer == ‘vertical’) … Read more
Scripts are raw java embedded in the page code, and if you declare variables in your scripts, then they become local variables embedded in the page. In contrast, JSTL works entirely with scoped attributes, either at page, request or session scope. You need to rework your scriptlet to fish test out as an attribute: <c:set … Read more
I found a better way to memoize using Scala: def memoize[I, O](f: I => O): I => O = new mutable.HashMap[I, O]() { override def apply(key: I) = getOrElseUpdate(key, f(key)) } Now you can write fibonacci as follows: lazy val fib: Int => BigInt = memoize { case 0 => 0 case 1 => 1 … Read more
Converting my comment to answer Choice of the creator: I tweeted Brendan and got the following answer: @mplungjan 10 days did not leave time for block scope. Also many “scripting languages” of that mid-90s era had few scopes & grew more later. That said, here are some relevant points: Block statement Important: JavaScript prior to … Read more
Try C#7’s Pattern Matching. Using your example: if (new StringBuilder(“test”) is var sb && sb != null) { Console.WriteLine(sb); }
By declaring it global inside the function that accesses it: g_c = 0 class TestClass(): def run(self): global g_c for i in range(10): g_c = 1 print(g_c) The Python documentation says this, about the global statement: The global statement is a declaration which holds for the entire current code block.
Slightly more “Angular way” would be to use the straightforward limitTo filter, as natively provided by Angular: <ul class=”phones”> <li ng-repeat=”phone in phones | filter:query | orderBy:orderProp | limitTo:quantity”> {{phone.name}} <p>{{phone.snippet}}</p> </li> </ul> app.controller(‘PhoneListCtrl’, function($scope, $http) { $http.get(‘phones.json’).then( function(phones){ $scope.phones = phones.data; } ); $scope.orderProp = ‘age’; $scope.quantity = 5; } ); PLUNKER
A bean with a <managed-bean-scope> of none or a @NoneScoped annotation will be created on every single EL expression referencing the bean. It isn’t been stored by JSF anywhere. The caller has got to store the evaluated reference itself, if necessary. E.g. the following in the view <p>#{noneScopedBean.someProperty}</p> <p>#{noneScopedBean.someProperty}</p> <p>#{noneScopedBean.someProperty}</p> on a none-scoped bean will … Read more