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Why do we need C Unions?
...t recently written), it will act in a well-defined manner in virtually any compiler.
Unions are also sometimes used to implement pseudo-polymorphism in C, by giving a structure some tag indicating what type of object it contains, and then unioning the possible types together:
enum Type { INTS, FLO...
Having the output of a console application in Visual Studio instead of the console
...itself, instead of having a console popping up like in Visual Studio. This comes in handy, as even after the program has exited, I can still make good use of the text that was written in it, as it doesn't get erased until I run it again. Is it possible to achieve anything like that with Visual Studi...
How do I calculate the date in JavaScript three months prior to today?
...
console.log(d.toLocaleDateString());
If your requirements are more complicated than that, use some math and write some code. You are a developer! You don't have to install a library! You don't have to copy and paste from stackoverflow! You can develop the code yourself to do precisely wh...
Serializing to JSON in jQuery [duplicate]
... JSON.parse:
var your_object = JSON.parse(json_text);
It was recently recommended by John Resig:
...PLEASE start migrating
your JSON-using applications over to
Crockford's json2.js. It is fully
compatible with the ECMAScript 5
specification and gracefully degrades
if a native (faste...
Is there a combination of “LIKE” and “IN” in SQL?
...
There is no combination of LIKE & IN in SQL, much less in TSQL (SQL Server) or PLSQL (Oracle). Part of the reason for that is because Full Text Search (FTS) is the recommended alternative.
Both Oracle and SQL Server FTS implementat...
Does the default constructor initialize built-in types?
Does the default constructor (created by the compiler) initialize built-in-types?
7 Answers
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Git pre-push hooks
... fails, cancel the push, but I can't even find pre-push hook, there is pre-commit and pre-rebase only.
7 Answers
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javac not working in windows command prompt
I'm trying to use javac with the windows command prompt, but it's not working.
17 Answers
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Django: Get list of model fields?
...p (posts, blog, shop, etc.)
1) From model link: https://docs.djangoproject.com/en/stable/ref/models/meta/
from posts.model import BlogPost
all_fields = BlogPost._meta.fields
#or
all_fields = BlogPost._meta.get_fields()
Note that:
all_fields=BlogPost._meta.get_fields()
Will also get some relations...
Create folder with batch but only if it doesn't already exist
... and is a directory. If it is not there, or is there as a file, the mkdir command will run, and should cause an error. You might want to check for whether VTS exists as a file as well.
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