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C# Java HashMap equivalent
...f:
Adding/Getting items
Java's HashMap has the put and get methods for setting/getting items
myMap.put(key, value)
MyObject value = myMap.get(key)
C#'s Dictionary uses [] indexing for setting/getting items
myDictionary[key] = value
MyObject value = myDictionary[key]
null keys
Java's Has...
What is the difference between the kernel space and the user space?
...each entry has a field Privl which encodes the ring.
The LGDT instruction sets the address to the current descriptor table.
See also: http://wiki.osdev.org/Global_Descriptor_Table
the segment registers CS, DS, etc., which point to the index of an entry in the GDT.
For example, CS = 0 means the fi...
How to display the current year in a Django template?
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Is there any advantage of using map over unordered_map in case of trivial keys?
...end to prefer the std::map or perhaps a loki::AssocVector (for frozen data sets).
Don't get me wrong, I'd like to use the std::unordered_map and I may in the future, but it's difficult to "trust" the portability of such a container when you think of all the ways of implementing it and the various p...
submitting a GET form with query string params and hidden params disappear
...takes the value of action, appends a `?' to it, then appends the form data set, encoded using the "application/x-www-form-urlencoded" content type.
Maybe one could percent-encode the action-URL to embed the question mark and the parameters, and then cross one's fingers to hope all browsers would le...
Difference between string and text in rails?
I'm making a new web app using Rails, and was wondering, what's the difference between string and text ? And when should each be used?
...
Check if an element is present in an array [duplicate]
The function I am using now to check this is the following:
9 Answers
9
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Python hashable dicts
As an exercise, and mostly for my own amusement, I'm implementing a backtracking packrat parser. The inspiration for this is i'd like to have a better idea about how hygenic macros would work in an algol-like language (as apposed to the syntax free lisp dialects you normally find them in). Because...
PHP - Merging two arrays into one array (also Remove Duplicates)
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LAST_INSERT_ID() MySQL
...id in a variable :
INSERT INTO table1 (title,userid) VALUES ('test', 1);
SET @last_id_in_table1 = LAST_INSERT_ID();
INSERT INTO table2 (parentid,otherid,userid) VALUES (@last_id_in_table1, 4, 1);
Or get the max id frm table1
INSERT INTO table1 (title,userid) VALUES ('test', 1);
INSERT INTO...