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Plotting a list of (x, y) coordinates in python matplotlib
...on as actual x-y coordinates. Currently, it is making two plots, where the index of the list gives the x-coordinate, and the first plot's y values are the a s in the pairs and the second plot's y values are the b s in the pairs.
...
How to run Django's test database only in memory?
... can't use sqlite, because I'm using features specific to mysql (full-text indexes). For ubuntu users, you'll have to edit your apparmor config to allow mysqld access to /dev/shm/mysql
– Ivan Virabyan
May 4 '11 at 9:47
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How to split a string, but also keep the delimiters?
...)\\b"));
// "[a][,][bb][:::][c][ ][d][..][e]"
dump("ArrayIndexOutOfBoundsException".split("(?<=[a-z])(?=[A-Z])"));
// "[Array][Index][Out][Of][Bounds][Exception]"
dump("1234567890".split("(?<=\\G.{4})"));
// "[1234][5678][90]"
// Split at t...
What is the easiest way to push an element to the beginning of the array?
...1,2,3]
a.insert(0,'x')
=> ['x',1,2,3]
Where the first argument is the index to insert at and the second is the value.
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How to change column order in a table using sql query in sql server 2005?
...T INTO without specifying column names. Another example is ORDER BY column index instead of column name. Both obviously not recommended practices, but SQL Server allows it so someone may have used it somewhere, possibly breaking T-SQL code when changing column order.
– Carvelli...
Replace all non-alphanumeric characters in a string
... as a word character (don't know why): docs.python.org/3.6/library/re.html#index-32
– JHS
Dec 23 '18 at 1:32
You don't...
What's the difference between lists and tuples?
... elements that are accessed via unpacking (see later in this section)
or indexing (or even by attribute in the case of namedtuples). Lists
are mutable, and their elements are usually homogeneous and are
accessed by iterating over the list.
...
iterating over each character of a String in ruby 1.8.6 (each_char)
...
Extending la_f0ka's comment, esp. if you also need the index position in your code, you should be able to do
s = 'ABCDEFG'
for pos in 0...s.length
puts s[pos].chr
end
The .chr is important as Ruby < 1.9 returns the code of the character at that position instead of a sub...
How do you implement a Stack and a Queue in JavaScript?
...pt/Reference/…). Last in this context means the element with the highest index. An array in JS has nothing to do with a stack. It is not a stack just because it has a pop method. Pop just means "remove the last element and return it". Of course you can mimic the functionality of a stack with an ...
HTML for the Pause symbol in audio and video control
...s (added to Unicode in June 2014). fileformat.info/info/unicode/char/23f8/index.htm
– Anm
Dec 5 '14 at 15:50
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