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How to declare a type as nullable in TypeScript?
...e like the following:
type Nullable<T> = T | undefined | null;
var foo: Nullable<number> = 10; // ok
var bar: Nullable<number> = true; // type 'true' is not assignable to type 'Nullable<number>'
var baz: Nullable<number> = null; // ok
var arr1: Nullable<Array<n...
How to style a div to be a responsive square? [duplicate]
...thin it:
html:
<div>
<img src="1x1px.png">
<h1>FOO</h1>
</div>
css:
div {
position: relative;
width: 50%;
}
img {
width: 100%;
height: auto;
}
h1 {
position: absolute;
top: 10px;
left: 10px;
}
Fidle: http://jsfiddle.net/t529b...
Elastic Search: how to see the indexed data
... {
"terms" : {
"size" : 50,
"field" : "foo"
}
}
}
}
More available here: http://www.elasticsearch.org/guide
UPDATE : Sense plugin in Marvel
By far the easiest way of writing curl-style commands for Elasticsearch is the Sense plugin in Mar...
How to list all functions in a Python module?
...ide is that you can't detect functions that are generated at runtime, like foo = lambda x,y: x*y.
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How to wrap text in LaTeX tables?
...ackage{tabularx}
...
\begin{tabularx}{\linewidth}{ r X }
right-aligned foo & long long line of blah blah that will wrap when the table fills the column width\\
\end{tabularx}
All X columns get the same width. You can influence this by setting \hsize in the format declaration:
>{\setl...
Pretty graphs and charts in Python [closed]
...rt.y = 20
chart.data = [[1,2], [3,4]]
chart.categoryAxis.categoryNames = ['foo', 'bar']
chart.valueAxis.valueMin = 0
d.add(chart)
d.save(fnRoot='test', formats=['png', 'pdf'])
alt text http://i40.tinypic.com/2j677tl.jpg
Note: the image has been converted to jpg by the image host.
...
ALTER DATABASE failed because a lock could not be placed on database
...
CREATE DATABASE TESTING123
GO
USE TESTING123;
SELECT NEWID() AS X INTO FOO
FROM sys.objects s1,sys.objects s2,sys.objects s3,sys.objects s4 ,sys.objects s5 ,sys.objects s6
Connections 2 and 3
set lock_timeout 5;
ALTER DATABASE TESTING123 SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
...
Easiest way to read from and write to files
...
@Roland if you want to support "foo".Write(fileName) you can easily create extension to do so like public static Write(this string value, string fileName) { File.WriteAllText(fileName, value);} and use it in your projects.
– Alexei Lev...
How to declare a variable in a PostgreSQL query
...cularly recommend this.
WITH myconstants (var1, var2) as (
values (5, 'foo')
)
SELECT *
FROM somewhere, myconstants
WHERE something = var1
OR something_else = var2;
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How to discard local changes in an SVN checkout?
...anges using the svn revert command:
Revert changes to a file: svn revert foo.c
Revert a whole directory of files: svn revert --recursive .
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