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What's the difference between [ and [[ in Bash? [duplicate]
...| logical operators within the brackets to combine subexpressions
Aside from that, they're pretty similar -- most individual tests work identically between them, things only get interesting when you need to combine different tests with logical AND/OR/NOT operations.
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Difference between and
...rge downfall of using button types... the form onsubmit event is NOT fired from javascript submissions, leading to potential maintenance nightmares.
– mothmonsterman
Nov 19 '10 at 17:19
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What is the proper way to check for null values?
...y has downvoted this answer yet. This is semantically completely different from what the OP wants to do.
– Timwi
Mar 22 '12 at 15:27
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Java: What is the difference between and ?
...t to add
If you use Class.forName method, it only intializes the class. So from within this method, it makes a call only to clinit and when you use newInstance on the object returned from forName, it will call init for the instance initialization. You can use below code to see it in debug.
public c...
Transform DateTime into simple Date in Ruby on Rails
...rror: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> DateTime.new.to_date
=> Mon, 01 Jan -4712
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How to “git clone” including submodules?
...jects and more.
This change reduces the time for git fetch(man) in my repo from 25s to 6s.
Original answer 2010
As joschi mentions in the comments, git submodule now supports the --recursive option (Git1.6.5 and more).
If --recursive is specified, this command will recurse into the registered sub...
What is a C++ delegate?
...really count as delegates here - capturing lambdas and the object returned from std::bind, and both really do the same thing, except lambdas aren't polymorphic in the sense that they can accept different argument types.
– Xeo
Mar 5 '12 at 14:46
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Including dependencies in a jar with Maven
...gin with the "jar-with-dependencies" descriptor. Here's the relevant chunk from one of our pom.xml's that does this:
<build>
<plugins>
<!-- any other plugins -->
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<execu...
Failed binder transaction when putting an bitmap dynamically in a widget
...e exceeding the binder transaction buffer by transferring large element(s) from one activity to another activity.
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How to do a https request with bad certificate?
...generally because you didn't set ServerName properly (it will need to come from an env var or something - don't belly-ache about this requirement... do it correctly).
In particular, if you use client certs and rely on them for authentication, you basically have a fake login that doesn't actually lo...