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How can I start an interactive console for Perl?
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Matt Trout now has a far more up to date list of REPLs he recommends: shadow.cat/blog/matt-s-trout/mstpan-17
– Davor Cubranic
Oct 6 '16 at 22:33
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How do I send a POST request as a JSON?
...thon 2.x. You are using Python3 so the imports will be different. It would now be import urllib.request and urllib.request.Request(). Furthermore, printing the req object does nothing interesting. You can clearly see the headers have been added by printing req.headers. Beyond that, I am not sur why ...
Create an array with random values
...962890
function shuffle(array) {
var tmp, current, top = array.length;
if(top) while(--top) {
current = Math.floor(Math.random() * (top + 1));
tmp = array[current];
array[current] = array[top];
array[top] = tmp;
}
return array;
}
a = shuffle(a);
If you want to allow repeat...
Windows: XAMPP vs WampServer vs EasyPHP vs alternative [closed]
... package like those you're talking about.
It's a bit more work, yes; but knowing how to install and configure your environment is great -- and useful.
The first time, you'll need maybe half a day or a day to configure those. But, at least, you'll know how to do so.
And the next times, things will...
How to replace all dots in a string using JavaScript
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just to clarify, the \ escapes special characters in regular expressions, like the . in this case
– realgt
Sep 27 '11 at 20:30
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...dit application.rb: config.assets.precompile += %w( first.css second.js ). Now these files will compile as well. Don't add all files if you use them only in sprockets require, but only if you include them with <link>/<script>
– elado
Jan 9 '13 at 10...
what is the unsigned datatype?
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Historically in C, if you omitted a datatype "int" was assumed. So "unsigned" is a shorthand for "unsigned int". This has been considered bad practice for a long time, but there is still a fair amount of code out there that uses it.
...
What's the best way to generate a UML diagram from Python source code? [closed]
...ve heard of Pylint that helps statically checking Python code. Few people know that it comes with a tool named Pyreverse that draws UML diagrams from the python code it reads. Pyreverse uses graphviz as a backend.
It is used like this:
pyreverse -o png -p yourpackage .
where the . can also be a sin...
Getting the last element of a list
...st get the last element,
without modifying the list, and
assuming you know the list has a last element (i.e. it is nonempty)
pass -1 to the subscript notation:
>>> a_list = ['zero', 'one', 'two', 'three']
>>> a_list[-1]
'three'
Explanation
Indexes and slices can take neg...
find: missing argument to -exec
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I figured it out now. When you need to run two commands in exec in a find you need to actually have two separate execs. This finally worked for me.
find . -type f -name "*.rm" -exec ffmpeg -i {} -sameq {}.mp3 \; -exec rm {} \;
...