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How to discard local commits in Git?
... that doing:
git branch -D master
git checkout master
also does exactly what you want without having to redownload everything (your quote paraphrased). That is because your local repo contains a copy of the remote repo (and that copy is not the same as your local directory, it is not even the sam...
Understanding the Rails Authenticity Token
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What happens
When the user views a form to create, update, or destroy a resource, the Rails app creates a random authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the use...
What are some uses of template template parameters?
...lates which take templates as parameters) to do policy-based class design. What other uses does this technique have?
10 Ans...
How is a CRC32 checksum calculated?
...; they're different kinds of things. Also, since the bits are only 0 or 1, what would -1 even be? Really, we're working in the ring of polynomials with coefficients in the field $Z/2Z$, which only has two elements, 0 and 1, and where $1+1=0$. By putting the cofficients be in a field, then the polyno...
What is Weak Head Normal Form?
What does Weak Head Normal Form (WHNF) mean? What does Head Normal form (HNF) and Normal Form (NF) mean?
6 Answers
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What is the best method of handling currency/money?
... :converter => Proc.new { |value| Money.new(value) }
# ...
What you'll get:
Without any extra changes, all of your forms will show dollars and cents, but the internal representation is still just cents. The forms will accept values like "$12,034.95" and convert it for you. There's ...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
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While what Jon says is completely correct, and a very valid point, I have to concur that the question AS ASKED is about if they are the already asking for all columns. Because of this part of the question, the real issues is fragil...
What are some common uses for Python decorators? [closed]
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Great example! No idea what it does though. An explanation what you are doing there, and how the decorator solves the problem would be very nice.
– MeLight
Jun 15 '14 at 16:00
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What are the benefits of learning Vim? [closed]
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What about once we are done with VIMTUTOR ? What's the next step to learn more ?
– privatehuff
Apr 4 '10 at 2:49
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What is SELF JOIN and when would you use it? [duplicate]
What is self join and when would you use it? I don't understand self joins so a layman explanation with an example would be great.
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