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How to display Toast in Android?
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In order to display Toast in your application, try this:
Toast.makeText(getActivity(), (String)data.result,
Toast.LENGTH_LONG).show();
Another example:
Toast.makeText(getActivity(), "This is my Toast message!",
Toast....
How expensive is RTTI?
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if (typeid(a) == typeid(b)) {
B* ba = static_cast<B*>(&a);
etc;
}
instead of
B* ba = dynamic_cast<B*>(&a);
if (ba) {
etc;
}
The former involves only one comparison of std::type_info; the latter necessarily involves traversing an inheritance tree plus comparisons.
P...
How to submit a form with JavaScript by clicking a link?
...t;a href="#">submit</a>
Apply the aforementioned techniques in order to add an event listener.
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Do the JSON keys have to be surrounded by quotes?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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What is the difference between `git merge` and `git merge --no-ff`?
... branch and you want to ensure it looks that way when reading history). In order to do that, you can pass the --no-ff flag and git merge will always construct a merge instead of fast-forwarding.
Similarly, if you want to execute a git pull or use git merge in order to explicitly fast-forward, and y...
How to save a dictionary to a file?
... convenient, but is good for performance. Protocol 0 is a text format.
In order to save collections of Python there is the shelve module.
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Keyword not supported: “data source” initializing Entity Framework Context
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to run Rails console in the test environment and load test_helper.rb?
...rubyonrails.org/classes/ActiveSupport/TestCase.html ... it's probably test order which is :random by default
– Mirv - Matt
May 30 '17 at 22:32
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...orked perfectly fine for me:
Comment out the bind address from the file /etc/mysql/my.cnf:
#bind-address = 127.0.0.1
Run following query in phpMyAdmin:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'; FLUSH PRIVILEGES;
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
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