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throws Exception in finally blocks
... The check for null is redundant. If the resource was null, then the calling method is broken should be fixed. Also, if the resource is null, that should probably be logged. Otherwise it results in a potential exception being silently ignored.
– Dave Jarvis
...
How to tell if a file is git tracked (by shell exit code)?
...onsole with error messages, you can also run
git ls-files file_name
and then check the result. If git returns nothing, then the file is not tracked. If it's tracked, git will return the file path.
This comes in handy if you want to combine it in a script, for example PowerShell:
$gitResult = (g...
How to vertically center divs? [duplicate]
...the parent div, give it display:inline-block and vertical-align:middle and then give those same properties to the child div. Since vertical-align is for alignment along a line, those inline divs will be considered a line.
Make the :before div height:100%, and the child div will automatically follow...
Why do we need a fieldset tag?
...ios with fieldset, and you don't put id's on your radio button input tags, then the group represented by the fieldset is added to the tabchain as if it was a single item.
This lets you tab through a form, and when you get to a fieldset, you can use arrow keys to change the selected radio, and then ...
“Too many values to unpack” Exception
...t to the number of target variables. For example: this work, and prints 1, then 2, then 3
def returnATupleWithThreeValues():
return (1,2,3)
a,b,c = returnATupleWithThreeValues()
print a
print b
print c
But this raises your error
def returnATupleWithThreeValues():
return (1,2,3)
a,b = ret...
What is a “Stub”?
...s aims was to avoid using any name that was already widely used.) Meszaros then defined four particular kinds of double:
Dummy objects are passed around but never actually used. Usually they are just used to fill parameter lists.
Fake objects actually have working implementations, but usua...
What is PECS (Producer Extends Consumer Super)?
...ase 1: You want to go through the collection and do things with each item.
Then the list is a producer, so you should use a Collection<? extends Thing>.
The reasoning is that a Collection<? extends Thing> could hold any subtype of Thing, and thus each element will behave as a Thing when...
How do I draw a shadow under a UIView?
...d the restore it to what it was before you configured it to draw a shadow. Then, finally, you invoke the superclass's implementation of drawRect: .
Any drawing that should be affected by the shadow setting needs to happen after
CGContextSetShadow(currentContext, CGSizeMake(-15, 20), 5);
but bef...
What is Python used for? [closed]
...ns that you don't declare a type (e.g. 'integer') for a variable name, and then assign something of that type (and only that type). Instead, you have variable names, and you bind them to entities whose type stays with the entity itself. a = 5 makes the variable name a to refer to the integer 5. Late...
View list of all JavaScript variables in Google Chrome Console
...
@MildFuzz Then use Nick Craver's solution (the accepted one).
– Marcel Korpel
Oct 26 '13 at 12:29
add a commen...