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What does void mean in C, C++, and C#?
... to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
15 Answers
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How does '20 seconds' work in Scala?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to create directories recursively in ruby?
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How do I sort an array of hashes by a value in the hash?
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How can I make the cursor turn to the wait cursor?
...ow level.
A typical use case can look like below:
private void button1_Click(object sender, EventArgs e)
{
try
{
this.Enabled = false;//optional, better target a panel or specific controls
this.UseWaitCursor = true;//from the Form/Window instance
...
How to get a random number in Ruby
... for a full blown framework:
require 'securerandom'
p SecureRandom.random_number(100) #=> 15
p SecureRandom.random_number(100) #=> 88
p SecureRandom.random_number #=> 0.596506046187744
p SecureRandom.random_number #=> 0.350621695741409
p SecureRandom.hex #=> "eb693ec8252cd630102fd...
How to pass an array within a query string?
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(NOTE: In this case, it would be important to name the select control some_name[], so that the resulting request vars would be registered as an array by PHP)
... or as multiple hidden fields with the same name:
<input type="hidden" name="cars[]" value="Volvo">
<input type="hidden" name...
Difference between this and self in self-type annotations?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Differences between utf8 and latin1
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What's the state of the art in email validation for Rails?
...] || "is not an email")
end
end
end
class Person < ActiveRecord::Base
validates :email, presence: true, email: true
end
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