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Retrieving the last record in each group - MySQL
...sible_keys | key | key_len | ref | rows | Extra |
+----+-------------+------------+--------+----------------------------+-------------+---------+--------------+---------+-------------+
| 1 | PRIMARY | <derived2> | ALL | NULL ...
Why do you need to invoke an anonymous function on the same line?
...ess function and groups it, but does not call it. The second line groups a string. Both do nothing. (Vincent's first example.)
(function (msg){alert(msg)});
('SO'); // nothing.
(foo);
(msg); //Still nothing.
But
(foo)
(msg); //works
...
How to free memory in Java?
...emory you may want to consider.
For example, say you'd declared a List<String> at the beginning of a method which grew in size to be very large, but was only required until half-way through the method. You could at this point set the List reference to null to allow the garbage collector to p...
What is an 'endpoint' in Flask?
...al way that you might go about creating a view, it actually abstracts some extra info from you. Behind the scenes, Flask did not make the leap directly from URL to the view function that should handle this request. It does not simply say...
URL (http://www.example.org/greeting/Mark) should be handl...
When should we implement Serializable interface?
...g JSON you don't have to implement this interface and can simply send that string.. so Im still not sure why to use this interface when you can use JSON.
– Yonatan Nir
Aug 29 '16 at 7:21
...
What's so bad about Template Haskell?
... lately (using haskell-src-exts / meta) - https://github.com/mgsloan/quasi-extras/tree/master/examples . I know this introduces some bugs such as not being able to splice in the generalized list comprehensions. However, I think that there's a good chance that some of the ideas in http://hackage.hask...
Design patterns or best practices for shell scripts [closed]
... values. This means that you have to invent a different strategy to return string values. My strategy is to use a variable called RESULT to store the result, and returning 0 if the function completed cleanly.
Also, you can raise exceptions if you are returning a value different from zero, and then ...
Types in MySQL: BigInt(20) vs Int(20)
...---+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+------------------+------+-----+---------+-------+
| id | int(20) unsigned | YES | | NULL | |
+-------+------------------+------+-----+---------+-------+
1 row in set (0,00 sec)
mysql> IN...
Insert a line break in mailto body
... Additional note: If you're constructing the link with ES6/ES2015 string templates the raw code (%0D%0A) works just fine.
– Adam Simpson
Apr 18 '16 at 16:00
...
Concatenating two one-dimensional NumPy arrays
... the input list in various ways before hand. np.stack for example adds an extra dimension to all input arrays. Look at their source code. Only concatenate is compiled.
– hpaulj
May 26 '17 at 16:45
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