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Join strings with a delimiter only if strings are not null or empty
...r(x => x)) removes all "falsy" values (nulls, undefineds, empty strings etc). If your definition of "empty" is different, then you'll have to provide it, for example:
[...].filter(x => typeof x === 'string' && x.length > 0)
will only keep non-empty strings in the list.
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(obs...
What is an SDL renderer?
...lds all info about the Window itself: size, position, full screen, borders etc.
SDL_Renderer
SDL_Renderer is a struct that handles all rendering. It is tied to a SDL_Window so it can only render within that SDL_Window. It also keeps track the settings related to the rendering. There are several ...
How are the points in CSS specificity calculated
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Thats because its between .o & .a .b etc So it would consider them collectively. But between an ID & a class e.g: .a and #a the ID will always overpower. It will (I assume) only count between classes when there is not a more overpowering attr. E.g class will...
Checking network connection
...efore we try with Python, let's test connectivity using an external tool, Netcat:
$ nc 8.8.8.8 53 -zv
Connection to 8.8.8.8 53 port [tcp/domain] succeeded!
Netcat confirms that we can reach 8.8.8.8 over 53/tcp. Now we can set up a socket connection to 8.8.8.8:53/tcp in Python to check connection:
i...
Dependency Injection vs Factory Pattern
...plemented in many ways like DI using constructors, using mapping xml files etc.
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Is there a performance difference between a for loop and a for-each loop?
...d", e.g. the get-method inside the loop will be called for values 1, 2, 3, etc.
– volley
Nov 3 '08 at 19:30
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Insert ellipsis (…) into HTML tag if content too wide
... of the text; then 75% of the text if 50% fits, or 25% if 50% doesn't fit, etc.
– StanleyH
Feb 1 '11 at 10:07
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Unmangling the result of std::type_info::name
...a type_info class. This contains the name of the typeid'd class/function/etc. but it's mangled. It's not very useful. I.e. typeid(std::vector<int>).name() returns St6vectorIiSaIiEE .
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Is modern C++ becoming more prevalent? [closed]
...s" - raw pointers, char* strings and use of associated C functions, arrays etc; newer code uses ATL smart pointers and such to manage resources, but still sticks to hand-coded loops most of the time, and iterator is a rare sight; and the newest one is chock-full of STL containers, al
Is delete this allowed?
...he call started, possibly connect more people if you do a conference call, etc.) When the last people on the call hang up, the phone_call object does its final book-keeping (e.g., adds an entry to the database to say when you hung up, so they can compute how long your call was) and then destroys its...