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“render :nothing => true” returns empty plaintext file?
...nt type like this:
render :nothing => true, :status => 200, :content_type => 'text/html'
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How to cancel/abort jQuery AJAX request?
...dyState which contains the state of the request(UNSENT-0, OPENED-1, HEADERS_RECEIVED-2, LOADING-3 and DONE-4). we can use this to check whether the previous request was completed.
$(document).ready(
var xhr;
var fn = function(){
if(xhr && xhr.readyState != 4){
x...
TCP vs UDP on video stream
...say you are streaming a soccer match, or concert for that matter, do you really need to use UDP?
13 Answers
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How to select the nth row in a SQL database table?
...upports the standard windowing functions:
SELECT * FROM (
SELECT
ROW_NUMBER() OVER (ORDER BY key ASC) AS rownumber,
columns
FROM tablename
) AS foo
WHERE rownumber <= n
(which I just copied from the site linked above since I never use those DBs)
Update: As of PostgreSQL 8.4 the st...
Convert NSNumber to int in Objective-C
...r interfacing with cross-platform libs. And even then something like uint32_t would be better to use.
– Max Seelemann
Jan 11 '15 at 13:06
1
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How do I send a POST request as a JSON?
... 6]
}
req = urllib2.Request('http://example.com/api/posts/create')
req.add_header('Content-Type', 'application/json')
response = urllib2.urlopen(req, json.dumps(data))
Python 3.x
https://stackoverflow.com/a/26876308/496445
If you don't specify the header, it will be the default application/x...
How to disable JavaScript in Chrome Developer Tools?
...sable-javascript doesn't work with google-chrome-stable-51.0.2704.106-1.x86_64.
– Cristian Ciupitu
Jul 16 '16 at 20:44
1
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Rails hidden field undefined method 'merge' error
...
You should do:
<%= f.hidden_field :service, :value => "test" %>
hidden_field expects a hash as a second argument
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What are the differences between Abstract Factory and Factory design patterns?
...le the desired object
instantiation.
The quote assumes that an object is calling its own factory method here. Therefore the only thing that could change the return value would be a subclass.
The abstract factory is an object that has multiple factory methods on it. Looking at the first half of your...
How can I set the request header for curl?
...;q=0.8,en;q=0.6' \
-e localhost \
-A 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.65 Safari/537.36' \
'http://restapi.some-site.com/getsomething?argument=value&argument2=value'
In this example the referer (-e or --referer in curl) is '...