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DBMS_OUTPUT.PUT_LINE not printing
...procedure is completed"?
By default, most tools do not configure a buffer for dbms_output to write to and do not attempt to read from that buffer after code executes. Most tools, on the other hand, have the ability to do so. In SQL*Plus, you'd need to use the command set serveroutput on [size N|u...
In Docker, what's the difference between a container and an image? [duplicate]
... You're restarting from exactly the same defined state as you started in before, not where you left off.
$ docker run -i -t ubuntu /bin/bash
root@abf181be4379:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
root@abf181be4379:/# exit
Bu...
How do I calculate a point on a circle’s circumference?
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The parametric equation for a circle is
x = cx + r * cos(a)
y = cy + r * sin(a)
Where r is the radius, cx,cy the origin, and a the angle.
That's pretty easy to adapt into any language with basic trig functions. Note that most languages will use ...
Using NumberPicker Widget with Strings
Is there a way to use the Android NumberPicker widget for choosing strings instead of integers?
5 Answers
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How to iterate over array of objects in Handlebars?
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You can pass this to each block. See here: http://jsfiddle.net/yR7TZ/1/
{{#each this}}
<div class="row"></div>
{{/each}}
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How do I disable a jquery-ui draggable?
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This works. Full docs for draggable() are here. Same goes for sortable() objects (if you're allowing drag-n-drop reordering.)
– nickb
Apr 7 '11 at 2:52
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Ruby send vs __send__
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Some classes (for example the standard library's socket class) define their own send method which has nothing to do with Object#send. So if you want to work with objects of any class, you need to use __send__ to be on the safe side.
Now t...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...11 supports std::async, but Boost does not
Boost has a boost::shared_mutex for multiple-reader/single-writer locking. The analogous std::shared_timed_mutex is available only since C++14 (N3891), while std::shared_mutex is available only since C++17 (N4508).
C++11 timeouts are different to Boost time...
How can I check that a form field is prefilled correctly using capybara?
...put[@value='John']")
See http://www.w3schools.com/xpath/xpath_syntax.asp for more info.
For perhaps a prettier way:
expect(find_field('Your name').value).to eq 'John'
EDIT: Nowadays I'd probably use have_selector
expect(page).to have_selector("input[value='John']")
If you are using the page...
Why does Clojure have “keywords” in addition to “symbols”?
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Here's the Clojure documentation for Keywords and Symbols.
Keywords are symbolic identifiers that evaluate to themselves. They provide very fast equality tests...
Symbols are identifiers that are normally used to refer to something else. They can be...