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When should I create a destructor?
... on their own thread. Don't cause deadlocks!
An unhandled exception thrown from a destructor is bad news. It's on its own thread; who is going to catch it?
A destructor may be called on an object after the constructor starts but before the constructor finishes. A properly written destructor will not...
Test if a variable is set in bash when using “set -o nounset”
...her the variable is set, and the latter detect whether it is set or empty. From man bash: "Omitting the colon results in a test only for a parameter that is unset."
– l0b0
Jan 7 '14 at 21:00
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Web API Put Request generates an Http 405 Method Not Allowed error
...hod on my Web API - the third line in the method (I am calling the Web API from an ASP.NET MVC front end):
9 Answers
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Difference between CC, gcc and g++?
...he answer to this is platform-specific; what happens on Linux is different from what happens on Solaris, for example.
The easy part (because it is not platform-specific) is the separation of 'gcc' and 'g++':
gcc is the GNU C Compiler from the GCC (GNU Compiler Collection).
g++ is the GNU C++ Comp...
Should I write script in the body or the head of the html? [duplicate]
... Good answer, technically putting scripts in the header is clean, but from an end user point of view and SEO putting scripts right at the bottom of the document as the very last thing has many, many benefits. On some pages I've seen the apparent responsiveness of the page increase many fold ju...
How to define a reply-to address?
How can I define a reply-to address different than the :from one? Is that even possible?
2 Answers
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How to convert Nonetype to int or string?
... figure out how you're getting None when you expect a number and stop that from happening.
If it's someone else's code, find out the conditions under which it gives None and determine a sensible value to use for that, with the usual conditional code:
result = could_return_none(x)
if result is Non...
Android -Starting Service at Boot Time
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Does this work if app is force closed from settings? Will the app still wakeup?
– Srihari Karanth
May 17 '17 at 8:21
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Use HTML5 to resize an image before upload
...ment('canvas'),
max_size = 544,// TODO : pull max size from a site config
width = image.width,
height = image.height;
if (width > height) {
if (width > max_size) {
height *= ...
How to print a string in fixed width?
...lly posted as an edit to @0x90's answer, but it got rejected for deviating from the post's original intent and recommended to post as a comment or answer, so I'm including the short write-up here.
In addition to the answer from @0x90, the syntax can be made more flexible, by using a variable for th...