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Does Go provide REPL?
...d here, but the same speed makes REPL less necessary. Every time I want to test something in Go that I can't run in Playground I open a simple .go file and start coding and simply run the code. This will be even easier when the go command in Go 1 makes one-command build process possible and way easi...
receiver type *** for instance message is a forward declaration
...2 steps Apple defined on this diagram:
Example:
Error shows up in your Test.m file:
Receiver 'MyClass' for class message is a forward declaration
Step 1: check that Test.h has
@class MyClass;
Step 2: find *-Swift.h file name in Build Settings (look for Objective-C Generated Interface H...
Why use a ReentrantLock if one can use synchronized(this)?
...gher contention. You can read more about this here.
This claim has been contested, however; see the following comment:
In the reentrant lock test, a new lock is created each time, thus there is no exclusive locking and the resulting data is invalid. Also, the IBM link offers no source code for the ...
Grabbing the href attribute of an A element
...*=\s*['\"](.*?)['\"]/", $str, $res);
var_dump($res);
?>
then
$ php test.php
array(2) {
[0]=>
array(1) {
[0]=>
string(27) "<a title="this" href="that""
}
[1]=>
array(1) {
[0]=>
string(4) "that"
}
}
which works. I've just removed the first capture b...
Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users?
...sted using Modernizr already, well Modernizr allows you to create your own tests. What I'm basically doing here is 'abstracting' the idea of a browser that supports :hover into a Modernizr test that I can use throughout my code without hardcoding if (iOS) throughout.
Modernizr.addTest('workinghov...
Explain ExtJS 4 event handling
...e equivalent) were created. So, for example, if we have html:
<div id="test_node"></div>
and we want add click event handler.
Let's retrieve Element:
var el = Ext.get('test_node');
Now let's check docs for click event. It's handler may have three parameters:
click( Ext.EventObj...
Rails: Check output of path helper from console
... Chubas' comment above worked in Rails 3. This is very useful when writing tests so I don't have to wait 1 minute to find out that the route is not correct. Also, it is great to test get and post calls. You don't need to call app.get first.
– B Seven
Aug 17 '11...
Calling a function every 60 seconds
... This is good example! When you use timers it harder to write unit tests, but with this approach - it's easy
– Dmytro Medvid
Sep 5 '16 at 17:18
...
How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?
...
I ran into this while testing on a new Xoom. I had previously installed my app from the Marketplace. Later while trying to test a new version of the app I ran into this error.
I fixed it by removing the app that was installed via Marketplace (jus...
Why doesn't c++ have &&= or ||= for booleans?
...Let's check using the following C++ code:
#include <iostream>
void test (int testnumber, bool a, bool b)
{
std::cout << testnumber <<") a="<< a <<" and b="<< b <<"\n"
"a && b = "<< (a && b) <<"\n"
...