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How can I convert a string to a number in Perl?
I have a string which holds a decimal value in it and I need to convert that string into a floating point variable. So an example of the string I have is "5.45" and I want a floating point equivalent so I can add .1 to it. I have searched around the internet, but I only see how to convert a string t...
Is it possible to use global variables in Rust?
...t spawn. The upside is that unlike truly global state, it is entirely safe and is not a pain to use - true global state is a massive pain in any language. Here's an example:
extern mod sqlite;
use std::cell::RefCell;
thread_local!(static ODB: RefCell<sqlite::database::Database> = RefCell::n...
How does push notification technology work on Android?
...
From what I've heard during an Android developers conference in Israel:
There is simply a TCP socket waiting in accept mode on a cloud Google server. The TCP connection had been initiated by the Google Play application. That's why Google Play must be inst...
zsh compinit: insecure directories
What does it mean and how can I fix it?
22 Answers
22
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C: Run a System Command and Get Output? [duplicate]
I want to run a command in linux and get the text returned of what it outputs, but I do not want this text printed to screen. Is there a more elegant way than making a temporary file?
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Display current date and time without punctuation
For example, I want to display current date and time as the following format:
5 Answers
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Why is Maven downloading the maven-metadata.xml every time?
...use that, Maven runs in "offline" mode. It knows it has a local repo only, and it won't contact the remote repo to refresh the artifacts no matter what update policies you use.
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Rails DB Migration - How To Drop a Table?
...ation to already have the code you want. You can create an empty migration and then populate it with the code you need.
You can find information about how to accomplish different tasks in a migration here:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
More specifically, you can s...
Make fill entire screen?
...height left my background white w/o the background-color applied when I expanded some collapsible divs in the middle of my page. min-height fixed that.
– Stephen P
Mar 9 '13 at 1:03
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Sending HTML email using Python
...rom'] = me
msg['To'] = you
# Create the body of the message (a plain-text and an HTML version).
text = "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.python.org"
html = """\
<html>
<head></head>
<body>
<p>Hi!<br>
How are you?<br>...