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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
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@RobinGreen I mean complying with the Traversable interface does not require keeping state, while complying with Iterator interface does.
– Daniel C. Sobral
Nov 6 '13 at 16:59
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How to specify a multi-line shell variable?
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set -e exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true...
Reuse Cucumber steps
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UPDATE: The method described below has been deprecated. The recommended way to call a step from within another step now looks like this:
Given /^I login successfully$/
step "I login with valid credentials"
end
Old, deprecated method (for reference):
You can call steps from o...
Difference between `const shared_ptr` and `shared_ptr`?
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How to tell if JRE or JDK is installed
I have one computer that I intentionally installed JDK on. I have another computer with JRE, for, among other things, testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow instal...
How to deep watch an array in angularjs?
...he third argument takes a boolean value?
– JayQuerie.com
Feb 5 '13 at 18:12
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correct way to use super (argument passing)
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Sometimes two classes may have some parameter names in common. In that case, you can't pop the key-value pairs off of **kwargs or remove them from *args. Instead, you can define a Base class which unlike object, absorbs/ignores arguments:
class Base(object):
def __init__(sel...
using gitignore to ignore (but not delete) files
...ad of .gitignore, you can update local git repository by running following command:
git update-index --assume-unchanged <file>
In this case a file is being tracked in the origin repo. You can modify it in your local repo and git will never mark it as changed. Read more at:
http://blog.pag...
Cmake vs make sample codes?
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Here is a CMakeLists.txtthat does (almost) exactly the same, with some comments to underline the
similarities to the Makefile:
#CMakeLists.txt
cmake_minimum_required(VERSION 2.8) # stuff not directly
project(example) # related to buil...
What is the best way to find the users home directory in Java?
... Linux, other unix variants. I am looking for a snippet of code that can accomplish this for all platforms, and a way to detect the platform.
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