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Transform DateTime into simple Date in Ruby on Rails
....to_date
NoMethodError: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> DateTime.new.to_date
=> Mon, 01 Jan -4712
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How to format a number 0..9 to display with 2 digits (it's NOT a date)
I'd like to always show a number under 100 with 2 digits (example: 03, 05, 15...)
5 Answers
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Add a new element to an array without specifying the index in Bash
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edited Dec 23 '09 at 9:18
answered Dec 23 '09 at 9:02
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How to validate an email address using a regular expression?
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+50
The fully RFC 822 compliant regex is inefficient and obscure because of its length. Fortunately, RFC 822 was superseded twice and the...
Java: int array initializes with nonzero elements
... bug will be fixed.
There is only advice at the moment: do not use JDK1.7.0_04 or later if you depend on JLS for newly declared arrays.
Update at October 5:
In the new Build 10 of the JDK 7u10 (early access) released at October 04, 2012, this bug was fixed at least for Linux OS (I did not test fo...
Why does 'continue' behave like 'break' in a Foreach-Object?
...on a particular iteration, thus, it simulates the continue in a loop.
1..100 | ForEach-Object {
if ($_ % 7 -ne 0 ) { return }
Write-Host "$($_) is a multiple of 7"
}
There is a gotcha to be kept in mind when refactoring. Sometimes one wants to convert a foreach statement block into a pipe...
How can I get the Typescript compiler to output the compiled js to a different directory?
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answered Jun 27 '14 at 14:40
Bruno GriederBruno Grieder
20.3k77 gold badges5252 silver badges8282 bronze badges
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Can't use modulus on doubles?
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280
The % operator is for integers. You're looking for the fmod() function.
#include <cmath>...
Bash empty array expansion with `set -u`
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20
The only safe idiom is ${arr[@]+"${arr[@]}"}
This is already the recommendation in ikegami's an...
How do I resolve configuration errors with Nant 0.91?
After downloading Nant 0.91, I'm getting some rather cryptic configuration errors relating to configuration or security (see below).
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