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Can't access object property, even though it shows up in a console log
...g)) and you will see the keys, or the state of the object at the time you called console.log.
You will (usually) find the keys are being added after your console.log call.
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std::shared_ptr thread safety explained
...ly regarding your original 3 questions.
But the ending part of your edit
Calling reset() in thread IV will delete previous instance of A class created in first thread and replace it with new instance? Moreover after calling reset() in IV thread other threads will see only newly created object?
is ...
How can I use interface as a C# generic type constraint?
...nHolt: I think think the creators of .NET, in deciding what constraints to allow, were focused on ones that would let generic classes and methods do things with generic types that they otherwise could not, rather than on preventing them from being used in nonsensical ways. That having been said, an...
Saving enum from select in Rails 4.1
...;/option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.keys.map { |w| [w...
How to use getJSON, sending data with post method?
...textStatus contains the status: success, error, etc
}, "json");
In that call, dataToBeSent could be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dataToBeSent = $("form").serialize();...
CSS background-image - What is the correct usage?
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answered May 12 '09 at 8:32
GumboGumbo
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Validating with an XML schema in Python
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lxml is pure python or not? (does require compilation/installation or you can just include it with your python scripts)
– sorin
Jun 14 '10 at 14:08
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PHP expects T_PAAMAYIM_NEKUDOTAYIM?
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Not really. Test this var_dump(empty(TRUE))
– machineaddict
Jun 5 '14 at 13:12
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Hidden Features of MySQL
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Since you put up a bounty, I'll share my hard won secrets...
In general, all the SQLs I tuned today required using sub-queries. Having come from Oracle database world, things I took for granted weren’t working the same with MySQL. And my reading on MySQL tuning makes me conclude that MySQL is be...
How to deal with floating point number precision in JavaScript?
...at depends on what kind of
calculations you’re doing.
If you really need your results to add up exactly, especially when you
work with money: use a special decimal
datatype.
If you just don’t want to see all those extra decimal places: simply
format your result rounded to a fix...