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how to fire event on file select
...ill work even when you navigate away from the page and uses jquery:
//the HTML
<input type="file" id="file" name="file" />
//the JavaScript
/*resets the value to address navigating away from the page
and choosing to upload the same file */
$('#file').on('click touchstart' , function(){...
What's the difference between and
...
Source: http://download.oracle.com/javase/tutorial/extra/generics/convert.html; it explains why the JDK's java.util.Collections class has a method with this signature:
public static <T extends Object & Comparable<? super T>> T max(
Collection<? extends T> coll
)
...
Should __init__() call the parent class's __init__()?
...ame.methodname(self, arguments).
http://docs.python.org/tutorial/classes.html#inheritance
That's all the story:
when the aim is to KEEP the initialization performed by the base-class, that is pure inheritance, nothing special is needed, one must just avoid to define an __init__ function in the...
The differences between .build, .create, and .create! and when should they be used?
...y what you want from an API.
I would always use the new + save option for html, especially if you are relying on the return value for flow control.
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...
ElasticSearch - Return Unique Values
...tic.co/guide/en/elasticsearch/reference/current/returning-only-agg-results.html
"aggs" : {
"langs": {
"composite" : {
"size": ITEMS_PER_PAGE,
"sources" : [
{ "language": { "terms" : { "field": "language" } } }
...
Toggle input disabled attribute using jQuery
...
Another simple option that updates on a click of the checkbox.
HTML:
<input type="checkbox" id="checkbox/>
<input disabled type="submit" id="item"/>
jQuery:
$('#checkbox').click(function() {
if (this.checked) {
$('#item').prop('disabled', false); // If checked...
How do I filter ForeignKey choices in a Django ModelForm?
...rm = ClientForm(the_company)
return render_to_response('addclient.html',
{'form': form, 'the_company':the_company})
This can be useful for reuse say if you have common filters needed on many models (normally I declare an abstract Form class). E.g.
class...
How do you 'redo' changes after 'undo' with Emacs?
...sman42 Apparently this is a "non-bug": dr-qubit.org/Lost_undo-tree_history.html
– Dalker
Feb 3 at 6:18
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How to check for valid email address? [duplicate]
...email addresses as indicated in RFC 3696: http://www.faqs.org/rfcs/rfc3696.html
Found some old code:
import lepl.apps.rfc3696
email_validator = lepl.apps.rfc3696.Email()
if not email_validator("email@example.com"):
print "Invalid email"
...
Install specific git commit with pip
...nd more information at https://pip.pypa.io/en/latest/reference/pip_install.html#git
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