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What is the difference between “def” and “val” to define a function
...if you need a function (not method) for function composition or for higher order functions (like filter(even)) compiler will generate a function from your method every time you are using it as function, so performance could be slightly worse than with val.
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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
...same query. If we do mix them, we need to be aware of a difference in the order of precedence.
excerpt from MySQL Reference Manual
https://dev.mysql.com/doc/refman/5.6/en/join.html
INNER JOIN and , (comma) are semantically equivalent in the absence of a join condition: both produce a Cartesian pro...
Using MySQL with Entity Framework [closed]
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Check out my post on this subject.
http://pattersonc.com/blog/index.php/2009/04/01/using-mysql-with-entity-framework-and-aspnet-mvc-–-part-i/
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Get The Current Domain Name With Javascript (Not the path, etc.)
... This should be the answer, it works even in localhost/test.php and that the correct answer localhost.
– Mohammad AlBanna
Jul 12 '16 at 14:07
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How do I install Python OpenCV through Conda?
...I ran conda update --all and some libraries required a downgrade to 1.9 in order to run.
– mercergeoinfo
Nov 12 '15 at 9:23
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Is it possible to get all arguments of a function as single object inside that function?
In PHP there is func_num_args and func_get_args , is there something similar for JavaScript?
10 Answers
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Using PowerShell to write a file in UTF-8 without the BOM
...losed before sending the result through the pipeline. This is necessary in order to be able to write back to the same file (update it in place).
Generally, though, this technique is not advisable for 2 reasons: (a) the whole file must fit into memory and (b) if the command is interrupted, data will ...
Generate random int value from 3 to 6
...details check this: https://www.techonthenet.com/sql_server/functions/rand.php
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HTML5 textarea placeholder not appearing
...hite spaces between the commas and the variables.
example using twig for php framework symfony :
<input type="text" name="subject" value="{{ subject }}" placeholder="hello" /> <-- this is ok
<input type="text" name="subject" value" {{ subject }} " placeholder="hello" /> ...
Performance of Arrays vs. Lists
...ing the Capacity of the list to the number of items it will hold.
But, in order to figure out if iterating over a List is as fast as iterating over an array, why don't you benchmark it ?
int numberOfElements = 6000000;
List<int> theList = new List<int> (numberOfElements);
int[] theAr...