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What is meant by 'first class object'?
...ion , I received suggestions to talk on, amongst other things, the aspect of JavaScript where functions are 'first class' objects. What does the 'first class' mean in this context, as opposed to other objects?
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How to count TRUE values in a logical vector
In R, what is the most efficient/idiomatic way to count the number of TRUE values in a logical vector? I can think of two ways:
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sed one-liner to convert all uppercase to lowercase?
I have a textfile in which some words are printed in ALL CAPS. I want to be able to just convert everything in the textfile to lowercase, using sed . That means that the first sentence would then read, 'i have a textfile in which some words are printed in all caps.'
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How to stop a goroutine
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EDIT: I wrote this answer up in haste, before realizing that your question is about sending values to a chan inside a goroutine. The approach below can be used either with an additional chan as suggested above, or using the fact that the chan you have already is bi...
Git command to display HEAD commit id?
What command can I use to print out the commit id of HEAD?
9 Answers
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How to jump from Intellij terminal to editor with shortcut
I know that you can jump from almost all windows in Intellij IDEA to the editor window with Esc . In Intellij's terminal window, this does not work. Does anyone know how to do this with a keyboard shortcut? This would be nice since I can jump from my editor to the terminal with Alt + F12 but I ca...
Bash empty array expansion with `set -u`
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The only safe idiom is ${arr[@]+"${arr[@]}"}
This is already the recommendation in ikegami's answer, but there's a lot of misinformation and guesswork in this thread. Other patterns, such as ${arr[@]-} or ${arr[@]:0}, are not safe acro...
Is it possible in Java to access private fields via reflection [duplicate]
Is it possible in Java to access private field str via reflection?
For example to get value of this field.
3 Answers
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Update relationships when saving changes of EF4 POCO objects
Entity Framework 4, POCO objects and ASP.Net MVC2. I have a many to many relationship, lets say between BlogPost and Tag entities. This means that in my T4 generated POCO BlogPost class I have:
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How do you get a directory listing sorted by creation date in python?
What is the best way to get a list of all files in a directory, sorted by date [created | modified], using python, on a windows machine?
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