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Difference between a class and a module
I came from Java, and now I am working more with Ruby.
9 Answers
9
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
....day.ordinalize}")
=> "Fri Oct 3rd"
Note, if you are using IRB with Ruby 2.0, you must first run:
require 'active_support/core_ext/integer/inflections'
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Removing duplicate rows in vi?
...mmand the whole file changes? how do you go back? I already saved the file by mistake ... my bad
– nilon
May 4 '18 at 14:51
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Capturing multiple line output into a Bash variable
...eates a potentially very long single line of output with 'words' separated by single spaces (where a 'word' is a sequence of non-whitespace characters; there needn't be any alphanumerics in any of the words).
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How to get href value using jQuery?
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You can get current href value by this code:
$(this).attr("href");
To get href value by ID
$("#mylink").attr("href");
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How can I parse a YAML file from a Linux shell script?
...ing started"
output_file="yes"
it also understands yaml files, generated by ruby which may include ruby symbols, like:
---
:global:
:debug: 'yes'
:verbose: 'no'
:debugging:
:detailed: 'no'
:header: debugging started
:output: 'yes'
and will output the same as in the previous exam...
How to calculate a time difference in C++
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clock() returns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/clock
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delete_all vs destroy_all?
... / destroy_all: The associated objects are destroyed alongside this object by calling their destroy method
delete / delete_all: All associated objects are destroyed immediately without calling their :destroy method
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What is ANSI format?
...r than 7-bit as ASCII is (ASCII is almost always encoded nowadays as 8-bit bytes with the MSB set to 0). See the article for an explanation of why this encoding is usually referred to as ANSI.
The name "ANSI" is a misnomer, since it doesn't correspond to any actual ANSI standard, but the name has s...
What is the significance of initializing direction arrays below with given values when developing ch
...ion x,y, and we want to add onto its x and its y value to move it to a nearby location, 1,0 is east, -1,0 is west, 0,1 is south, 0,-1 is north and so on.
(Here I have said top left is 0,0 and bottom right is 4,4 and shown what move each index of the arrays will make from the central point, X, at 2,...