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How to convert a string to lower case in Bash?
..." | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
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sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
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# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
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Perl
$ echo "$a" | perl -n...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
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Quick answer:
A child scope normally prototypically inherits from its parent scope, but not always. One exception to this rule is a directive with scope: { ... } -- this creates an "isolate" scope that does not prototypically inherit. This construct is often used when creating a ...
Renew Provisioning Profile
...r device (in the left list)
Click on "Add device to provisioning portal"
Wait until it's done !
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How to get an enum which is created in attrs.xml in code
I created a custom View (find it here ) with an declare-styleable attribute of type enum. In xml I can now choose one of the enum entries for my custom attribute. Now I want to create an method to set this value programmatically, but I can not access the enum.
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Where can I find my .emacs file for Emacs running on Windows?
...he .emacs file for my Windows installation for Emacs, but I could not find it. Does it have the same filename under Windows as in Unix?
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A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
...hole receipt.
At a glance
Get the receipt and verify the transaction. If it fails, refresh the receipt and try again. This makes the verification process asynchronous as refreshing the receipt is asynchronous.
From RMStoreAppReceiptVerifier:
RMAppReceipt *receipt = [RMAppReceipt bundleReceipt];
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Gitignore not working
My .gitignore file isn't working for some reason, and no amount of Googling has been able to fix it. Here is what I have:
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Computational complexity of Fibonacci Sequence
I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence:
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Should I always return IEnumerable instead of IList?
When I'm writing my DAL or other code that returns a set of items, should I always make my return statement:
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