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Make elasticsearch only return certain fields?
...
In ES 2.4 and earlier, you could also use the fields option to the search API:
{
"fields": ["user", "message", ...],
"query": ...,
"size": ...
}
This is deprecated in ES 5+. And source filters are more powerful anyway!
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Can JavaScript connect with MySQL?
... (though, highly unlikely) that a future version of the language would add APIs to access remote databases.
– Lucas Pottersky
Jun 1 '11 at 14:36
3
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React.js: Wrapping one component into another
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Note you don't necessarily need to use children, it is a matter of taste/API.
<Promise
promise={somePromise}
renderLoading={() => <div>...</div>}
renderSuccess={(data) => <div>{data.something}</div>}
renderError={(e) => <div>{e.message}</div&g...
How to import a class from default package
...<?> calcClass = Class.forName("Calculations");
CalculationsInterface api = (CalculationsInterface)calcClass.newInstance();
// Use it
double res = api.GetProgress(10);
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How can I default a parameter to Guid.Empty in C#?
... I see the reason for down-voting: The question specifies that API cannot be changed to use Nullable<Guid> - fair enough
– Majix
May 14 '14 at 3:45
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How to check if current thread is not main thread
...als( Looper.getMainLooper().getThread() )
Or, if the runtime platform is API level 23 (Marshmallow 6.0) or higher:
Looper.getMainLooper().isCurrentThread()
See the Looper API. Note that calling Looper.getMainLooper() involves synchronization (see the source). You might want to avoid the overh...
How to make an Android device vibrate?
...hot(500, VibrationEffect.DEFAULT_AMPLITUDE));
} else {
//deprecated in API 26
v.vibrate(500);
}
Note:
Don't forget to include permission in AndroidManifest.xml file:
<uses-permission android:name="android.permission.VIBRATE"/>
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How to get the value from the GET parameters?
...ing in a (modern) browser you can use the URL object (which is part of the APIs provided by browsers to JS):
var url_string = "http://www.example.com/t.html?a=1&b=3&c=m2-m3-m4-m5"; //window.location.href
var url = new URL(url_string);
var c = url.searchParams.get("c");
console.log(c)...
Getting the client's timezone offset in JavaScript
...fault timezone.
In this version of the ECMAScript Internationalization API, the
timeZone property will remain undefined if no timeZone property was
provided in the options object provided to the Intl.DateTimeFormat
constructor. However, applications should not rely on this, as future
ver...
Setting log level of message at runtime in slf4j
...about configuring the level of the underlying logging system via the SLF4J API. What scompt.com was after was a generic 'log' method in the SLF4J API, that takes the logging level of the message as a parameter.
– Richard Fearn
May 25 '11 at 21:24
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