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How to mkdir only if a directory does not already exist?
I am writing a shell script to run under the KornShell (ksh) on AIX. I would like to use the mkdir command to create a directory. But the directory may already exist, in which case I do not want to do anything. So I want to either test to see that the directory does not exist, or suppress the "Fil...
Where can I learn jQuery? Is it worth it?
I've had a lot of good experiences learning about web development on w3schools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference.
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Get records with max value for each group of grouped SQL results
How do you get the rows that contain the max value for each grouped set?
17 Answers
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How to write to a file in Scala?
... active, if any, Li Haoyi suggests his own library lihaoyi/os-lib, that he presents below.
June 2019, Xavier Guihot mentions in his answer the library Using, a utility for performing automatic resource management.
Edit (September 2011): since Eduardo Costa asks about Scala2.9, and since Rick-777...
Which characters need to be escaped in HTML?
Are they the same as XML, perhaps plus the space one (   )?
4 Answers
4
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Select values from XML field in SQL Server 2008
...ven that the XML field is named 'xmlField'...
SELECT
[xmlField].value('(/person//firstName/node())[1]', 'nvarchar(max)') as FirstName,
[xmlField].value('(/person//lastName/node())[1]', 'nvarchar(max)') as LastName
FROM [myTable]
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fetch from origin with deleted remote branches?
...do git fetch origin and origin has a deleted branch, it doesn't seem to update it in my repository. When I do git branch -r it still shows origin/DELETED_BRANCH .
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Why aren't pointers initialized with NULL by default?
Can someone please explain why pointers aren't initialized to NULL ?
Example:
15 Answers
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JFrame in full screen Java
I will be doing a project soon and I will have to use full screen mode in it.
13 Answers
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AngularJS : Initialize service with asynchronous data
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Have you had a look at $routeProvider.when('/path',{ resolve:{...}? It can make the promise approach a bit cleaner:
Expose a promise in your service:
app.service('MyService', function($http) {
var myData = null;
var promise = $http.get('data....