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Why is #!/usr/bin/env bash superior to #!/bin/bash?
...h_installed_on_this_system="$(\
awk -F'/' '$NF == "bash"{print}' "/etc/shells"\
)"
for bash in $all_bash_installed_on_this_system
do
versinfo="$( $bash -c 'echo ${BASH_VERSINFO}' )"
[ "${versinfo}" -eq "${DESIRED_VERSION}" ] && { found=1 ; break;}
...
What does “./bin/www” do in Express 4.x?
...
Ultimately, you could have different scripts like test, stop, or restart, etc. Having this structure allows you to have different startup configurations, without cramming everything into app.js.
The correct way to start your Express app is:
npm start
To deploy an Express 4.x app to Heroku, add...
How to change the name of a Django app?
...step is deployed through all active checkouts (CI, other devs, production, etc) before the next step is tackled, it worked perfectly -- no problems with the existing historical migrations. Do the steps in order, and propagate the changes everywhere before moving to the following step.
...
Mediator Vs Observer Object-Oriented Design Patterns
...ter themselves and receive notifications upon events, e. g. ButtonListener etc.
Both of these patterns allow for lesser coupling, but are quite different.
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In-Place Radix Sort
...ms = [0, 90000, 170000, 170100] which is used in place of your APos, CPos, etc. as a cursor for where the next element for each digit should be swapped to.)
– Jason S
Jan 20 '09 at 23:01
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Naming convention for utility classes in Java
... type CustomerUtils by mistake, have to look it up, curse you a few times, etc. (I heard a lecture on consistency once where the speaker put up a slide showing an outline of his speech with three main points, labeled "1", "2nd", and "C".)
Never ever ever make two names that differ only in some subt...
What is the difference between a pseudo-class and a pseudo-element in CSS?
...or element (:hover)
Apply css when gets focus on an html element (:focus). etc.
We use pseudo-element when we need to apply css to the specific parts of an elements or a newly inserted content. Such as:
Apply the css to first letter or first line of an element (::first-letter)
Insert content bef...
GitHub: Reopening a merged pull request
...te it, or do I have to create a new pull request, type out the description etc again? Gitorious has this feature and we've recently moved to GitHub.
...
Instance attribute attribute_name defined outside __init__
...ions in lieu of using exit(1). You get tracebacks, your code is reusable, etc.
class Wizard:
def __init__(self, argv):
self.name,self.magic_ability = self.parse_arguments(argv)
def parse_arguments(self, argv):
assert len(argv) == 2
return argv[0],argv[1]
...
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
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All apps will continue to work in the vertically stretched screen from what I could tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black.
If you only plan to support iOS 6+, then definitely consider using Auto...