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Python List vs. Array - when to use?
If you are creating a 1d array, you can implement it as a List, or else use the 'array' module in the standard library. I have always used Lists for 1d arrays.
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Should try…catch go inside or outside a loop?
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PERFORMANCE:
There is absolutely no performance difference in where the try/catch structures are placed. Internally, they are implemented as a code-range table in a structure that is created when the method is called. While the ...
Which version of CodeIgniter am I currently using?
.../codeigniter/CodeIgniter.php As of CodeIgniter 2, it's defined in /system/core/CodeIgniter.php
For example,
echo CI_VERSION; // echoes something like 1.7.1
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Who is calling the Java Thread interrupt() method if I'm not?
...ead itself I think) could call interrupt() on a Thread.
In practice, the normal use-cases for interrupt() involve some kind of framework or manager telling some worker thread to stop what they are doing. If the worker thread is "interrupt aware" it will notice that it has been interrupted via an e...
Go > operators
...super (possibly over) simplified definition is just that << is used for "times 2" and >> is for "divided by 2" - and the number after it is how many times.
So n << x is "n times 2, x times". And y >> z is "y divided by 2, z times".
For example, 1 << 5 is "1 times 2, 5...
How to extract URL parameters from a URL with Ruby or Rails?
...to turn any given URL string into a HASH?
You can try http://www.ruby-doc.org/stdlib/libdoc/cgi/rdoc/classes/CGI.html#M000075
require 'cgi'
CGI::parse('param1=value1&param2=value2&param3=value3')
returns
{"param1"=>["value1"], "param2"=>["value2"], "param3"=>["value3"]}
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How to avoid 'cannot read property of undefined' errors?
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Update:
If you use JavaScript according to ECMAScript 2020 or later, see optional chaining.
TypeScript has added support for optional chaining in version 3.7.
// use it like this
obj?.a?.lot?.of?.properties
Solution for JavaScript before ECMASCript 202...
“using namespace” in c++ headers
...en by including that header in another program I will get the namespace imported into my program, maybe without realizing, intending or wanting it (header inclusion can be very deeply nested).
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How do I fix "The expression of type List needs unchecked conversion…'?
...>, then cast each element of the sf.getEntries() result to SyndEntry before adding it to your new list. Collections.checkedList does not do this checking for you—although it would have been possible to implement it to do so.
By doing your own cast up front, you're "complying with the warranty...
Can I make git recognize a UTF-16 file as text?
...er making a change git identified the file as binary and wouldn't diff it for me. I discovered that the file was encoded in UTF-16.
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