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Setting HTTP headers
...t - I used the Set() method on Header() (doh!)
My handler looks like this now:
func saveHandler(w http.ResponseWriter, r *http.Request) {
// allow cross domain AJAX requests
w.Header().Set("Access-Control-Allow-Origin", "*")
}
Maybe this will help someone as caffeine deprived as myself s...
How do you make a LinearLayout scrollable?
...
You need to place ScrollView as the first child of Layout file and now put your linearlayout inside it. Now, android will decide on the basis of content and device size available whether to show a scrollable or not.
Make sure linearlayout has no sibling because ScrollView can not have more...
Cannot download Docker images behind a proxy
...tory for the Docker service:
mkdir /etc/systemd/system/docker.service.d
Now create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
[Service]
Environment="HTTP_PROXY=http://proxy.example.com:80/"
If you have internal Docker regis...
Why would an Enum implement an Interface?
...plexOperators implements Operator {
// can't think of an example right now :-/
}
Now to get a list of both the Simple + Complex Operators:
List<Operator> operators = new ArrayList<Operator>();
operators.addAll(Arrays.asList(SimpleOperators.values()));
operators.addAll(Arrays.asLi...
Is there still any reason to learn AWK?
...s on the environment you find yourself in. If you are a *nix person, then knowing awk is a Good Thing. The only other scripting environment that can be found on virtually every *nix is sh. So while grep, sed, etc can surely replace awk on a modern mainstream linux distro, when you move to more exoti...
Vim users, where do you rest your right hand? [closed]
... avoid overwriting base Vim features: Toss whatever used to be on ; to the now-empty h button
As a cute bonus, the "l" key now stands for "left" ;)
noremap l h
noremap ; l
noremap h ;
The previous "runners-up", who both use "left-down-up-right" layout:
Choice 1: "hjkl"
@al...
Cross Browser Flash Detection in Javascript
...is capable of displaying embedded flash content. I say reliably because I know its not possible 100% of the time.
16 Answe...
Format JavaScript date as yyyy-mm-dd
...
now.toISOString().substring(0,10); This is a cleaner alternative, since it reminds you that YYYY-MM-DD are the first ten characters of the complete iso format
– Gutimore
Aug 26 '18 at 2...
Update R using RStudio
...ork for you, try using installed.packages()
to find the proper pathnames.]
now you can update your packages by typing update.packages() in your RStudio console, and answering 'y' to all of the prompts.
> update.packages(checkBuilt=TRUE)
class :
Version 7.3-7 installed in /Library/Frameworks/R.f...
what is the difference between GROUP BY and ORDER BY in sql
...-+-----------+----------+
GROUP BY: arrange identical data into groups.
Now, CUSTOMERS table has the following records with duplicate names:
+----+----------+-----+-----------+----------+
| ID | NAME | AGE | ADDRESS | SALARY |
+----+----------+-----+-----------+----------+
| 1 | Ramesh ...