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JavaScript Nested function
...
140
Functions are another type of variable in JavaScript (with some nuances of course). Creating a f...
Possible to do a MySQL foreign key to one of two possible tables?
...s (
user_id INT NOT NULL,
place_id INT NOT NULL,
place_type VARCHAR(10) -- either 'states' or 'countries'
-- foreign key is not possible
);
There's no way to model Polymorphic Associations using SQL constraints. A foreign key constraint always references one target table.
Polymorphic Ass...
Why is #!/usr/bin/env bash superior to #!/bin/bash?
...
answered Feb 6 '14 at 20:12
ziggzigg
16.4k55 gold badges3131 silver badges5252 bronze badges
...
How to delete and replace last line in the terminal using bash?
...
echo a carriage return with \r
seq 1 1000000 | while read i; do echo -en "\r$i"; done
from man echo:
-n do not output the trailing newline
-e enable interpretation of backslash escapes
\r carriage return
...
How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
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answered Mar 26 '10 at 1:27
Morten MertnerMorten Mertner
9,08344 gold badges3333 silver badges5555 bronze badges
...
Rendering HTML inside textarea
...ditable="true"></div>
jsFiddle
div.editable {
width: 300px;
height: 200px;
border: 1px solid #ccc;
padding: 5px;
}
strong {
font-weight: bold;
}
<div contenteditable="true">This is the first line.<br>
See, how the text fits here, also if<b...
Check if a temporary table exists and delete if it exists before creating a temporary table
...understanding the problem.
The following works fine for me in SQL Server 2005, with the extra "foo" column appearing in the second select result:
IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results
GO
CREATE TABLE #Results ( Company CHAR(3), StepId TINYINT, FieldId TINYINT )
GO
select...
How to check if a string is a valid date
I have a string: "31-02-2010" and want to check whether or not it is a valid date.
What is the best way to do it?
14 Answ...
How to print to console when using Qt
...
206
If it is good enough to print to stderr, you can use the following streams originally intended ...
How to pass command line arguments to a rake task
... |
edited Aug 26 at 7:06
Sajad Torkamani
32633 silver badges1313 bronze badges
answered Apr 7 '15 at...