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Difference between “or” and || in Ruby? [duplicate]
... Jan 30 '19 at 0:48
Andrew Marshall
87.3k1818 gold badges202202 silver badges204204 bronze badges
answered Jan 17 '10 at 23:38
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Executing injected by innerHTML after AJAX call
There's a div called "Content":
11 Answers
11
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Execute combine multiple Linux commands in one line
...rm *.jar && svn co path to repo && mvn compile package install
If one of the commands fails, then all other commands following it won't be executed.
If you want to execute all commands regardless of whether the previous ones failed or not, separate them with semicolons:
cd /my_fo...
C# pattern to prevent an event handler hooked twice [duplicate]
...ution and the best one (considering performance) is:
private EventHandler _foo;
public event EventHandler Foo {
add {
_foo -= value;
_foo += value;
}
remove {
_foo -= value;
}
}
No Linq using required. No need to check for null before cancelling a subscrip...
npm install vs. update - what's the difference?
What is the practical difference between npm install and npm update ? When should I use which?
5 Answers
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PHP Regex to get youtube video ID?
...y are very easy to make an error in, so if there are PHP functions specifically for what you are trying to accomplish, use those.)
parse_url takes a string and cuts it up into an array that has a bunch of info. You can work with this array, or you can specify the one item you want as a second argum...
Ruby on Rails - Import Data from a CSV file
...
The smarter_csv gem was specifically created for this use-case: to read data from CSV file and quickly create database entries.
require 'smarter_csv'
options = {}
SmarterCSV.process('input_file.csv', options) do |chunk|
chunk.each do |data_hash|
...
Where to define custom error types in Ruby and/or Rails?
... error types in a Ruby library (gem) or Ruby on Rails application? Specifically:
5 Answers
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How do I sort one vector based on values of another
I have a vector x, that I would like to sort based on the order of values in vector y. The two vectors are not of the same length.
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Razor-based view doesn't see referenced assemblies
...m another project in the same solution (with assembly name MyCoreDBLayer). All objects from MyCore.DBLayer worked perfectly in Controllers and Models but failed in Razor views with an error 'The type or namespace name 'DBLayer' does not exist in the namespace 'MyCore' (are you missing an assembly re...