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Do you need break in switch when return is used?
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git command to show all (lightweight) tags creation dates
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@revelt git >= 2.0 provides a sort param. Put a minus in to reverse the order. git tag -l --sort=-creatordate --format='%(creatordate:short)|%(refname:short)'
– con--
Apr 4 '19 at 13:24
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AWS Error Message: A conflicting conditional operation is currently in progress against this resourc
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I got the same error message, when I did following:
created a bucket - it went by default to US region (used AWSCLI)
realized, the bucket shall go to EU region and deleted it (used AWS console)
(few minutes later) tried to create the bucket, specifying the EU r...
Check if any ancestor has a class using jQuery
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Appropriate hashbang for Node.js scripts
... who only have Node installed as nodejs.
Rationale:
It's what the cool kids are doing, and if you don't do it too, you're not cool. Major node projects like jshint, karma, bower, and even npm simply use #!/usr/bin/env node as the shebang for their executable scripts.
Because the cool kids are doi...
Python: using a recursive algorithm as a generator
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This avoids the len(string)-deep recursion, and is in general a nice way to handle generators-inside-generators:
from types import GeneratorType
def flatten(*stack):
stack = list(stack)
while stack:
try: x = stack[0...
What is the C# equivalent to Java's isInstance()?
...valent of Java's isInstance. The other answer is simply wrong despite the ridiculous number of upvotes.
– Konrad Rudolph
Sep 21 '16 at 17:21
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How does one use rescue in Ruby without the begin and end block
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I'm using the def / rescue combination a lot with ActiveRecord validations:
def create
@person = Person.new(params[:person])
@person.save!
redirect_to @person
rescue ActiveRecord::RecordInvalid
render :action => :new
end
I think this is very lean code!
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Rails: How to list database tables/objects using the Rails console?
...cts').map(&:name)
You should probably wrap them in shorter syntax inside your .irbrc.
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Amazon S3 Change file download name
I have files stored on S3 with a GUID as the key name.
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