A. Use the global keyword to import from the application scope. $var = “01-01-10”; function checkdate(){ global $var; if(“Condition”){ $var = “01-01-11”; } } checkdate(); B. Use the $GLOBALS array. $var = “01-01-10”; function checkdate(){ if(“Condition”){ $GLOBALS[‘var’] = “01-01-11”; } } checkdate(); C. Pass the variable by reference. $var = “01-01-10”; function checkdate(&$funcVar){ if(“Condition”){ $funcVar … Read more
Swing uses a single thread model for it’s event dispatching (including paint updates), as such, you should never, ever perform any long running or blocking operations within the Event Dispatching Thread (EDT). Swing is also not thread safe, meaning that you should never create or modify any UI component from outside the EDT. The basic … Read more
There are indeed global variables in javascript. You can learn more about scopes, which are helpful in this situation. Your code could look like this: <script> var count = 1; function setColor(btn, color) { var property = document.getElementById(btn); if (count == 0) { property.style.backgroundColor = “#FFFFFF” count = 1; } else { property.style.backgroundColor = “#7FFF00” … Read more
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.
Per the docs, the exec statement takes two optional expressions, defaulting to globals() and locals(), and always performs changes (if any) in the locals() one. So, just be more explicit/specific/precise…: >>> def myfunc(): … exec(‘myvar=”boooh!”‘, globals()) … >>> myfunc() >>> myvar ‘boooh!’ …and you’ll be able to clobber global variables to your heart’s contents.
Upgrade 2019 Playing with bash_ipc_demo adding completion and a graph generator. Rendez-vous If you wanna have two independant process which could communicate, you have to place a rendez-vous somewhere both process can reach. This could be a simple file, a fifo pipe, a unix socket, a TCP socket or maybe else (Rexx port). bash and … Read more
In IE, the event object was a global object, (which is not passed to the handler function) but accessed as a global object. You can also access it as a property of the window object like window.event In in FF and other browsers the event object was passed as an argument, since in FF there … Read more
You can indicate that the file is a module like so: export {}; declare global { namespace NodeJS { interface Global { config: MyConfigType } } }
There is a file in /application/config called constants.php I normally put all mine in there with a comment to easily see where they are: /** * Custom defines */ define(‘blah’, ‘hello mum!’); $myglobalvar=”hey there”; After your index.php is loaded, it loads the /core/CodeIgniter.php file, which then in turn loads the common functions file /core/Common.php and … Read more
Compare this, without using nonlocal: x = 0 def outer(): x = 1 def inner(): x = 2 print(“inner:”, x) inner() print(“outer:”, x) outer() print(“global:”, x) # inner: 2 # outer: 1 # global: 0 To this, using nonlocal, where inner()‘s x is now also outer()‘s x: x = 0 def outer(): x = 1 … Read more