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What are the benefits of Java's types erasure?
...ed in the tweet:
<T> T broken { return new T(); }
What happens if T doesn't have a no-arg constructor? In some languages what you get is null. Or perhaps you skip the null value and go straight to raising an exception (which null values seem to lead to anyway). Because our language is Turi...
How to get a variable name as a string in PHP?
...but it's the only way I can think of to do this.
Edit: get_defined_vars() doesn't seem to be working correctly, it returns 'var' because $var is used in the function itself. $GLOBALS seems to work so I've changed it to that.
function print_var_name($var) {
foreach($GLOBALS as $var_name => $...
Should I declare Jackson's ObjectMapper as a static field?
...ry light-weight (wrt mapper instances). So keeping thousands of references does not add much memory usage.
– StaxMan
Jun 2 '17 at 18:36
2
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Is short-circuiting logical operators mandated? And evaluation order?
Does the ANSI standard mandate the logical operators to be short-circuited, in either C or C++?
7 Answers
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Displaying the build date
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@JasonD In what universe does your problem somehow become my problem? How do you justify a downvote simply because you ran into an issue that this implementation didn't take into consideration. You got this for free and you tested it poorly. Also wha...
Conventions for exceptions or error codes
...OR)
// code to Handle the error here
If you code so that each method does one and only one simple thing, then you should throw an exception whenever the method cannot accomplish the method's desired objective. Exceptions are much richer and easier to use in this way than error codes. Your co...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
...some other class, you have to refer to it with its namespace. Actually, it does not have to be a constant.
Splat Operator
The splat operator * "unpacks" an array in its position so that
rescue *EXCEPTIONS
means the same as
rescue FooException, BarException
You can also use it within an arra...
What can I do with a moved-from object?
Does the standard define precisely what I can do with an object once it has been moved from? I used to think that all you can do with a moved-from object is do destruct it, but that would not be sufficient.
...
from jquery $.ajax to angular $http
...ome server side stuff to support it " I'm having the same problem, what does angular add that jquery doesnt?
– Andrew Luhring
Apr 20 '15 at 3:27
add a comment
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Building a minimal plugin architecture in Python
...ly hard to answer, without more details. What sort of application is this? Does it have a GUI? Is it a command-line tool? A set of scripts? A program with an unique entry point, etc...
Given the little information I have, I will answer in a very generic manner.
What means do you have to add plugin...