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What's the point of map in Haskell, when there is fmap?
... [b] -- Defined in ‘GHC.Base’
and you'll see it defined as an high-order function applicable to a list of values of any type a yielding a list of values of any type b. Although polymorphic (the a and b in the above definition stand for any type) the map function is intended to be applied to ...
What is the difference between a “function” and a “procedure”?
... based on input.
A procedure is a set of command which can be executed in order.
In most programming languages, even functions can have a set of commands. Hence the difference is only in the returning a value part.
But if you like to keep a function clean, (just look at functional languages), yo...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
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If you want different orders of magnitude, why not simply try pow(2, rand())? Or perhaps choose the order directly as rand(), as Harold suggested?
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Styling text input caret
...nge using Javascript and CSS http://www.dynamicdrive.com/forums/showthread.php?t=17450 It seems a bit hacky to me, but probably the only way to accomplish the task. The main point of the article is:
We will have a plain textarea somewhere in the screen out of the view
of the viewer and when th...
How to make all Objects in AWS S3 bucket public by default?
I am using a PHP library to upload a file to my bucket. I have set the ACL to public-read-write and it works fine but the file is still private.
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How to print (using cout) a number in binary form?
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#include <iostream>
#include <cmath> // in order to use pow() function
using namespace std;
string show_binary(unsigned int u, int num_of_bits);
int main()
{
cout << show_binary(128, 8) << endl; // should print 10000000
cout << show_binar...
Changing Vim indentation behavior by file type
...ds per filetype(s) this way, and they are guaranteed to be executed in the order given.
– underscore_d
Oct 20 '15 at 16:13
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show 1 more com...
Java : How to determine the correct charset encoding of a stream
...y in an UTF-8 format and does it include a BOM (en.wikipedia.org/wiki/Byte_order_mark)?
– Benny Neugebauer
Sep 12 '16 at 11:53
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HTTP Content-Type Header and JSON
...ot the answer you're looking for? Browse other questions tagged javascript php json http or ask your own question.
How to change the order of DataFrame columns?
... + cols[:-1]
In [13]: cols
Out[13]: ['mean', 0L, 1L, 2L, 3L, 4L]
Then reorder the dataframe like this:
In [16]: df = df[cols] # OR df = df.ix[:, cols]
In [17]: df
Out[17]:
mean 0 1 2 3 4
0 0.445543 0.445598 0.173835 0.343415 0.682252 ...