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How do you do relative time in Rails?
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Sounds like you're looking for the time_ago_in_words method (or distance_of_time_in_words), from ActiveSupport. Call it like this:
<%= time_ago_in_words(timestamp) %>
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Hidden Features of Xcode
...tween autocompletion choices.
Control ⌃. (Control-Period) after a word automatically accepts the first choice from the autocompletion menu. Try typing log then Control ⌃. and you'll get a nice NSLog statement. Press it again to cycle through any choices. To see all the mutable choices, t...
What is the difference between map and flatMap and a good use case for each?
... Array("Roses", "are", "red", "Violets", "are", "blue")
We have multiple words per line, and multiple lines, but we end up with a single output array of words
Just to illustrate that, flatMapping from a collection of lines to a collection of words looks like:
["aa bb cc", "", "dd"] => [["aa",...
How do I clear/delete the current line in terminal?
... Ctrl+U to clear up to the beginning.
You can use Ctrl+W to delete just a word.
You can also use Ctrl+C to cancel.
If you want to keep the history, you can use Alt+Shift+# to make it a comment.
Bash Emacs Editing Mode Cheat Sheet
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How does “cat
...ell to read input from
the current source until a line
containing only word (with no trailing
blanks) is seen.
All of the lines read up to that point are then used as the
standard input for a command.
The format of here-documents is:
<<[-]word
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Convert all first letter to upper case, rest lower for each word
I have a string of text (about 5-6 words mostly) that I need to convert.
11 Answers
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Why do Java programmers like to name a variable “clazz”? [closed]
...? Is this some kind of convention ? I think 'clazz' is not even an English word , has no meaning at all , how can so many programmers name a wrong name coincidentally ?
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How to negate specific word in regex? [duplicate]
...r] but I need a regular expression where negation applies to the specific word - so in my example how do I negate an actual bar , and not "any chars in bar"?
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Good MapReduce examples [closed]
I couldn't think of any good examples other than the "how to count words in a long text with MapReduce" task. I found this wasn't the best example to give others an impression of how powerful this tool can be.
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Looping through the content of a file in Bash
... in text files without the extra step of using separate script files.
for word in $(cat peptides.txt); do echo $word; done
This format allows me to put it all in one command-line. Change the "echo $word" portion to whatever you want and you can issue multiple commands separated by semicolons. The...