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How to open a file using the open with statement
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Use nested blocks like this,
with open(newfile, 'w') as outfile:
with open(oldfile, 'r', encoding='utf-8') as infile:
# your logic goes right here
...
Storing R.drawable IDs in XML array
...way could be this:
fun Int.resDrawableArray(context: Context, index: Int, block: (drawableResId: Int) -> Unit) {
val array = context.resources.obtainTypedArray(this)
block(array.getResourceId(index, -1))
array.recycle()
}
R.array.random_imgs.resDrawableArray(context, 0) {
mImgView1.setI...
Is leaked memory freed up when the program exits?
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Usually, yes. Some systems support things like shared memory blocks that aren't automatically freed when a program exits though. Most still keep a reference count and delete it when all the programs that opened it exit, but a few don't (e.g., 16-bit Windows had a few types of items tha...
Set Django IntegerField by choices=… name
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class Language(ChoiceEnum):
Python = 1
Ruby = 2
Java = 3
PHP = 4
Cpp = 5
# Uh oh
Language.Cpp._name_ = 'C++'
This is pretty much all. You can inherit the ChoiceEnum to create your own definitions and use them in a model definition like:
from django.db import models
from mya...
jQuery slide left and show
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@JayantVarshney: make sure that the block is right-aligned, possibly with some inner block. This code only shrinks the width. If your CSS can handle that, you'll have a right slide
– vdboor
Mar 12 '14 at 15:44
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How to achieve function overloading in C?
...me), and a type/expression association list that looks a bit like a switch block. _Generic gets the overall type of the expression and then "switches" on it to select the end result expression in the list for its type:
_Generic(1, float: 2.0,
char *: "2",
int: 2,
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What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
...iveSupport::TestCase
def assert_raises_with_message(exception, msg, &block)
block.call
rescue exception => e
assert_match msg, e.message
else
raise "Expected to raise #{exception} w/ message #{msg}, none raised"
end
end
and use it in your tests like:
assert_raises_with_...
How do you share code between projects/solutions in Visual Studio?
...e more clarification on my edits in the csproj file ... theswamp.org/index.php?topic=41850.msg472902#msg472902 . I just edit it in Notepad++. When I save it VS sees it has changed and asks for a reload. There are settings in VS to control this behavior.
– CAD bloke
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How to redirect output of an entire shell script within the script itself?
...hat this is really doing, so I wanted to share. The curly braces become a "block of code", which, in effect, creates an anonymous function. The output everything in the code block can then be redirected (See Example 3-2 from that link). Also note that curly braces do not launch a subshell, but simi...
Difference between SPI and API?
...oint. If you combine both pieces together into a single class, your API is blocked from any additions. That's also the reason why good Java APIs and Frameworks don't expose abstract class as they would block their future evolution with respect to the backward compatibility.
If something is still un...