namespaces

问题 I'm using R.3.3.1 in RStudio 0.99.903 on a work PC. I'm having the same error message when trying to use both ggplot2 and tidytext: although I managed to install both packages, when i launch them i get this error message: Error : package ‘grid’ does not have a namespace At first i thought this meant grid was missing but i read that it's now part of base so i don't understand why it doesn't load when i run library(grid)... Adding to my confusion is the fact that i can only see gridBase and

问题 I'm using R.3.3.1 in RStudio 0.99.903 on a work PC. I'm having the same error message when trying to use both ggplot2 and tidytext: although I managed to install both packages, when i launch them i get this error message: Error : package ‘grid’ does not have a namespace At first i thought this meant grid was missing but i read that it's now part of base so i don't understand why it doesn't load when i run library(grid)... Adding to my confusion is the fact that i can only see gridBase and

问题 I have added custom class under /src/Common directory as described here I do everything as described in link but it doesn't work. I can't understand why. Thank you in advance for help. Custom Class: HttpClient.class.php namespace Common; class HttpClient {... Controller: use Common\HttpClient; $httpClient = new HttpClient(); Error: FatalErrorException: Error: Class 'Common\HttpClient' not found in ... 回答1: Problem is my class exstension. It was .class.php and I changed it to .php and

问题 There is from 3.4.1/14: If a variable member of a namespace is defined outside of the scope of its namespace then any name that appears in the definition of the member (after the declarator-id) is looked up as if the definition of the member occurred in its namespace. If that name treated as the definition of the member name then what is it point of declaration? And why the following example will works: namespace N { extern int j; } int i = 2; int N::j = i; //N::j=2 int N::j=i actual appears

问题 What is exactly the difference between Classes and Namespaces in Typescript? I know that if you create a class with static methods you can access them without instantiate the class and that is exactly one of the points of namespaces I guess. I also know that you can create more than one Namespace with the same name and their methods will belong to the same function when compiled to JS. But I cant figure out when to use one or another...for me, at the end, classes and namespaces are almost the

问题 I'm working on a Liberator project in Clojure. I've defined a series of routes which return JSON data computed by logic in some other namespace. I would like to be able to change the namespace that implements the logic programmatically so I can do something like this: JAVA_OPTS='-DgameLogicNamespace=foo.logic.mock' lein ring server-headless 8080 I am currently doing it like this: (ns foo.routes (:require [compojure.core :refer :all] [liberator.core :as lib :refer [defresource request-method

问题 I was reading the source code of a library, which must remain anonymous, and I see that it's using an empty function to setup the namespace. It appears to be similar to the object literal notation (OLN) except that the base is a function. Here's an example of the declaration. /** * Base namespace for FOO library * @name FOO * @namespace */ function FOO(){} FOO.bar = 'bar const..'; FOO.fooFunc = function () { /* code */ }; FOO.Bar = function () { /* some constructor */ }; FOO.Bar.prototype.baz

问题 Bounty: I will send $5 via paypal for an answer that fixes this problem for me. I'm not sure what VS setting I've changed or if it's a web.config setting or what, but I keep getting this error in the error list and yet all solutions build fine. Here are some examples: Error 5 'CompilerGlobalScopeAttribute' is ambiguous in the namespace 'System.Runtime.CompilerServices'. C:\projects\MyProject\Web\Controls\EmailStory.ascx 609 184 C:\...\Web\ Error 6 'ArrayList' is ambiguous in the namespace

问题 I worked on a flex application 6-7 months back. We used flex 3.5 sdk. Now we are upgrading our flex app with flex sdk 4/4.1 I am still new to flex development and I have a very basic question related to namespace. I have seen three different namespaces in flex sample applications. What is the purpose of having three diff namespaces? When do I use each of them ? xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" Thanks

问题 This is a follow on from my prior question. I think I jumped in at the deep end so spending some time fully understanding XML namespaces. From this XML page, gonna focus on the below element for a min: <m:properties xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"> I understand that the m: prefix has been used in order to distinguish the properties element from elements with the same name in other documents, in case such documents are combined. I understand that in