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What's the best way of implementing a thread-safe Dictionary?
...lem with this is that you don't know if the action passed to that function calls some member of your dictionary (that would result in a deadlock). Exposing the synchronization object allows the consumer to make those decisions and doesn't hide the deadlock inside your class.
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MySQL: Set user variable from result of query
...for SET, either = or := can be used as the assignment operator. However inside other statements, the assignment operator must be := and not = because = is treated as a comparison operator in non-SET statements.
UPDATE:
Further to comments below, you may also do the following:
SET @user := 12345...
How do I select the parent form based on which submit button is clicked?
...with 3 forms on it. Not nested, just one after the other (they are almost identical, just one hidden variable that's different). A user will only fill in one form, and I'd like to validate/etc all the forms with only one JS script.
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Method call if not null in C#
...cted about this. In the case of an Action or event handler -- which is typically more independent -- this makes some sense. I wouldn't break encapsulation for a regular method, though. This implies creating the method in a separate, static class and I don't think losing encapsulation and degrading r...
Toggle input disabled attribute using jQuery
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prop is the better method since 1.6 as said by Arne.
– Ciro Santilli 郝海东冠状病六四事件法轮功
Jul 5 '14 at 14:49
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Best practice to mark deprecated code in Ruby?
...ramming for a deprecation is overkill. Just add a comment to the rdoc and call the Kernel#warn method. For example:
class Foo
# <b>DEPRECATED:</b> Please use <tt>useful</tt> instead.
def useless
warn "[DEPRECATION] `useless` is deprecated. Please use `useful` inst...
How to send a header using a HTTP request through a curl call?
...der to my Apache server on a Linux box. How can I achieve this via a curl call?
10 Answers
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How to exit in Node.js
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Call the global process object's exit method:
process.exit()
From the docs:
process.exit([exitcode])
Ends the process with the specified code. If omitted, exit uses the 'success' code 0.
To exit with a 'failure' code:
proce...
jQuery if checkbox is checked
...and suggesting that the absolute fastest recommendation would be to add an ID
– Tom Stickel
Sep 15 '15 at 23:01
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How to get value from form field in django framework?
...ctForm(request.POST) # A form bound to the POST data
if form.is_valid(): # All validation rules pass
# Process the data in form.cleaned_data
# ...
print form.cleaned_data['my_form_field_name']
return HttpResponseRedirect('/thanks/') # Redirec...