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How can I check in a Bash script if my local Git repository has changes?
...u're doing will almost work: you should quote $CHANGED in case it's empty, and -z tests for empty, which means no changes. What you meant was:
if [ -n "$CHANGED" ]; then
VN="$VN-mod"
fi
A quote from Git's GIT-VERSION-GEN:
git update-index -q --refresh
test -z "$(git diff-index --name-only HE...
optional parameters in SQL Server stored proc?
I'm writing some stored procs in SQL Server 2008, and wondered if the concept of optional input parameters is possible here?
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Add days to JavaScript Date
...become 9/1.
The problem with using setDate directly is that it's a mutator and that sort of thing is best avoided. ECMA saw fit to treat Date as a mutable class rather than an immutable structure.
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HTML5 best practices; section/header/aside/article elements
There is enough information about HTML5 on the web (and also on stackoverflow), but now I'm curious about the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout...
What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0
...en before await was available. This is a traditional callback using event handlers. await should be used if using the newer SendMailAsync.
– TheCodeKing
Jan 10 '15 at 11:05
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How do servlets work? Instantiation, sessions, shared variables and multithreading
...ervlets. For information passing among those servlets I am setting session and instance variables.
8 Answers
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Is a Java string really immutable?
...hange the lookup table used in Integer autoboxing etc.
Now, the reason s1 and s2 change value, is that they both refer to the same interned string. The compiler does this (as mentioned by other answers).
The reason s3 does not was actually a bit surprising to me, as I thought it would share the v...
Debugging iframes with Chrome developer tools
I'd like to use the Chrome developer console to look at variables and DOM elements in my app, but the app exists inside an iframe (since it's an OpenSocial app).
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Install NPM into home directory with distribution nodejs package (Ubuntu)
...s. Here's how I suggest compartmentalizing Nodejs packages:
Install Nodejs and NPM via the chris-lea PPA. Then I set up a package root in my homedir to hold the Node "global" packages:
$ NPM_PACKAGES="$HOME/.npm-packages"
$ mkdir -p "$NPM_PACKAGES"
Set NPM to use this directory for its global pac...
Which $_SERVER variables are safe?
Any variable that a user can control, an attacker can also control and is therefore a source of an attack. This is called a "tainted" variable, and is unsafe.
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