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How do I check for null values in JavaScript?
...statement, but yes, you can perform test against each one @inorganik , see my answer below
– WebWanderer
Dec 18 '14 at 16:02
36
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Keep overflow div scrolled to bottom unless user scrolls up
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I just implemented this and perhaps you can use my approach.
Say we have the following HTML:
<div id="out" style="overflow:auto"></div>
Then we can check if it scrolled to the bottom with:
var out = document.getElementById("out");
// allow 1px inaccuracy b...
Java optional parameters
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Method overloading is a good answer in my opinion, while varargs is a very bad answer. Please either remove the comment on varargs or explain the serious disadvantage caused by the possibility of more than one return value.
– Andreas Vogl
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Backbone.js: get current route
...history.getFragment()] );
Or like this from outside your router:
alert( myRouter.routes[Backbone.history.getFragment()] );
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Android: How to turn screen on and off programmatically?
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Well people, I will suggest not to use my method as this did not work for me on Micromax Canvas2+. Use this link instead.
– Rajkiran
Oct 9 '13 at 12:39
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How to solve java.lang.NoClassDefFoundError?
...run a unit test on Android. It turns out that the NoClassDefFoundError, in my case, occurred as a result of missing dependencies in the test. I need to think about dependency injection to prevent errors like this. Thanks for the elaborate answer.
– typical danny
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Remove blue border from css custom-styled button in Chrome
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In my instance of this problem I had to specify box-shadow: none
button:focus {
outline:none;
box-shadow: none;
}
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Why does .NET foreach loop throw NullRefException when collection is null?
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Please excuse my ignorance, but is this efficient? Does it not result in a comparison on each iteration?
– user919426
Mar 29 '16 at 10:19
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Where are static methods and static variables stored in Java?
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@Matthew how do you understand my answer? A said that variables are stored in the permgen section (primitives/references) not the objects they refer to. It depends on how you view a variables value.
– Thomas
Dec 5 '11...
How can I remove duplicate rows?
...keep. Then, just delete everything that didn't have a row id:
DELETE FROM MyTable
LEFT OUTER JOIN (
SELECT MIN(RowId) as RowId, Col1, Col2, Col3
FROM MyTable
GROUP BY Col1, Col2, Col3
) as KeepRows ON
MyTable.RowId = KeepRows.RowId
WHERE
KeepRows.RowId IS NULL
In case you have a ...