global

问题 I have a very common situation here. And for years I haven't found if what i am doing is RIGHT by industry standards.Consider an application which connects to the database, but where the connection string instead of being stored in some file/setting is being passed as a command line parameter at startup OR the database is browsed to at the time the application starts up. Well it becomes necessary to save that connection string somewhere within the scope of the app. Most common way I have seen

问题 I would like to create a new function that I can use on elements, like this: document.getElementById("element").myNewFunction(); I'm not talking about this: document.getElementById("element").myNewFunction = function(){ doSomething... } Because this works on that element only, but how should I create global function what I can use on all elements like the ones what are built in to JavaScript? 回答1: Use Element's prototype to extend its functionality: Element.prototype.myNewFunction = function(

问题 How can global function exist in C# when everything is defined inside a class? I was reading the documentation of OpCodes.Call at MSDN, and was surprised to see the following wordings, The metadata token carries sufficient information to determine whether the call is to a static method, an instance method, a virtual method, or a global function. Global function? Does it exist in C#? (It definitely doesn't refer to static method, as it's explicitly listed along with global function). 回答1: You

问题 I have two controller file homecontroller and backendcontroller. What is the best way to create global function and access it from both files? I found here Arian Acosta's answer helpful but I wonder if there is an easiest way. I would appreciate any suggestions. 回答1: Make a common file with any named. For eg. Common.php and write all the common function within in it. Now if you want to access this common function in your controller just include this Common.php file using "use". use Common;

问题 I have a global int I want to change in different files, for some reason it doesn't work. I have: //test.h #include <windows.h> static int start1; //want to use this globally. //declare void something(); //test.cpp #include "test.h" extern int start1; void something() { start1 = start1 + 1; } //main.cpp #include "test.h" #include "stdafx.h" #include <iostream> int _tmain(int argc, _TCHAR* argv[]) { start1 = 3; something(); return 0; } Why, when you go into something() is start1 0, instead of

问题 I've heard that it's not a good idea to make elements global in JavaScript. I don't understand why. Is it something IE can't handle? For example: div = getElementById('topbar'); 回答1: I don't think that's an implementation issue, but more a good vs bad practice issue. Usually global * is bad practice and should be avoided (global variables and so on) since you never really know how the scope of the project will evolve and how your file will be included. I'm not a big JS freak so I won't be

问题 This question already has answers here : Where does git config --global get written to? (16 answers) Closed 6 years ago . If you set something like this on Windows: git config --global core.autocrlf false Where is this global setting getting written to? 回答1: It will write the values in a file called .gitconfig, unless you specify another name with the ' --file ' option git config --global --file myFile key value Note: the environment variable GIT_CONFIG can also be used to specify another

问题 This question already has answers here : Where does git config --global get written to? (16 answers) Closed 6 years ago . If you set something like this on Windows: git config --global core.autocrlf false Where is this global setting getting written to? 回答1: It will write the values in a file called .gitconfig, unless you specify another name with the ' --file ' option git config --global --file myFile key value Note: the environment variable GIT_CONFIG can also be used to specify another

问题 I currently have code like this: cache = 1 def foo(): global cache # many # lines # of code cache = 2 However, this may lead to hard-to-find-bugs in the future, because the reader may not notice that global cache appears somewhere above cache = 2 . Alternatively, a contributor may mistakenly add def bar(): cache = 2 and forget to add the global cache . How can I avoid this pitfall? 回答1: class Cache: myvar = 1 def foo(): Cache.myvar = 2 This way, Cache.myvar is practically a "global". It's

问题 Is there a way to make all variables global? 回答1: To import all global variables incl. superglobals and clashing names of parameters into the functions scope: extract($GLOBALS, EXTR_REFS | EXTR_SKIP); The problem is with the superglobals here. You might want to exclude them, here is a list (PHP 5.2): /** * PHP Superglobals */ array ( 1 => 'GLOBALS', 2 => '_ENV', 3 => 'HTTP_ENV_VARS', 4 => '_POST', 5 => 'HTTP_POST_VARS', 6 => '_GET', 7 => 'HTTP_GET_VARS', 8 => '_COOKIE', 9 => 'HTTP_COOKIE_VARS