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Rails.env vs RAILS_ENV
...nquirer:
Wrapping a string in this class gives
you a prettier way to test for
equality. The value returned by
Rails.env is wrapped in a
StringInquirer object so instead of
calling this:
Rails.env == "production"
you can call this:
Rails.env.production?
So they aren't exact...
Explanation of JSONB introduced by PostgreSQL
...since it has binary representation, why jsonb doesn't support this? UPDATE test SET data->'a' = 123 WHERE id = 1; from CREATE TABLE test(id SERIAL PRIMARY KEY, data JSONB);
– Kokizzu
Nov 28 '14 at 4:46
...
Redefining NULL
... be converted into some other magic value such as -1.
Arrange for equality tests between pointers and a constant integer 0 to check for the magic value instead (§6.5.9/6)
Arrange for all contexts in which a pointer type is evaluated as a boolean to check for equality to the magic value instead of c...
Trigger change event of dropdown
...s one helps you, and please note that this code is just a rough draft, not tested on any ide. thanks
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Send message to specific client with socket.io and node.js
... use @PHPthinking's answer and use io.sockets.connected[socketid].emit();. Tested with 1.4.6.
– tbutcaru
May 25 '16 at 14:48
...
Gulp.js task, return on src?
...var gulp = require('gulp');
var merge = require('gulp-merge');
gulp.task('test', function() {
var bootstrap = gulp.src('bootstrap/js/*.js')
.pipe(gulp.dest('public/bootstrap'));
var jquery = gulp.src('jquery.cookie/jquery.cookie.js')
.pipe(gulp.dest('public/jquery'));
...
How to set selected value of jquery select2?
...ect option of select2
.trigger("change"); //apply to select2
You can test complete sample code in here link: https://jsfiddle.net/NabiKAZ/2g1qq26v/32/
In this sample code there is a ajax select2 and you can set new value with a button.
$("#btn").click(function() {
$('#sel')
.empty...
When to use IList and when to use List
...rn myList.AsReadOnly();
}
}
public class MyMockApiImplementationForUnitTests : IMyApi
{
public IList<int> GetReadOnlyValues()
{
IList<int> testValues = new int[] { 1, 2, 3 };
return testValues;
}
}
...
Difference between Label and TextBlock
...yle>
</StackPanel.Resources>
<ContentControl Content="Test">
<ContentControl.ContentTemplate>
<DataTemplate>
<TextBlock Text="{Binding}"/>
</DataTemplate>
</ContentControl.ContentTemplate>
...
Get key by value in dictionary
...int out which methods are the quickest, and in what scenario:
Here's some tests I ran (on a 2012 MacBook Pro)
>>> def method1(list,search_age):
... for name,age in list.iteritems():
... if age == search_age:
... return name
...
>>> def method2...