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String, StringBuffer, and StringBuilder
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@PietervanNiekerk What do you mean with logic operations?
– emlai
Sep 29 '15 at 10:38
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Android Archive Library (aar) vs standard jar
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@LarH I think it means that you can share the code (aar files) between your applications, but it will be included in every package separately to let users install the applications independently. If 2 applications are installed and both use th...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...if it is a unique object in memory that isn't a good way to do it.
System.identityHashCode does the following:
Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode(). The hash code for t...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...andn(int(1e6))})
test = test[test.x < 0]
# 54.5 ms ± 2.02 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)
%%timeit
test = pd.DataFrame({'x': np.random.randn(int(1e6))})
test.drop(test[test.x > 0].index, inplace=True)
# 201 ms ± 17.9 ms per loop (mean ± std. dev. of 7 runs, 10 loop...
How to use Namespaces in Swift?
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what you mean by tumbleweed?
– Alexander Mills
Nov 17 '18 at 2:58
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How do I flush the PRINT buffer in TSQL?
...OR in this way won't jump into your CATCH statement. Which is great, as it means you can still use RAISERROR like this with TRY/CATCH. ref: msdn.microsoft.com/en-us/library/ms175976.aspx
– Rory
Apr 12 '11 at 22:24
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How to stop EditText from gaining focus at Activity startup in Android
I have an Activity in Android, with two elements:
52 Answers
52
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How can I get Knockout JS to data-bind on keypress instead of lost-focus?
... from the docs in knockout.js: // The syntax "after<eventname>" means "run the handler asynchronously after the event" // This is useful, for example, to catch "keydown" events after the browser has updated the control
– John Wright
Jan 19 '1...
How to validate an OAuth 2.0 access token for a resource server?
...protected resource with an OAuth 2.0 access token, how does this server validate the token? The OAuth 2.0 refresh token protocol?
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When a 'blur' event occurs, how can I find out which element focus went *to*?
...ev.explicitOriginalTarget||document.activeElement;
document.getElementById("focused").value =
target ? target.id||target.tagName||target : '';
}
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<button id="btn1" onblur="showBlur(event)">Button 1</button>
<button id="btn2" onblur="showBlur(event)">Button 2</butt...