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Find where python is installed (if it isn't default dir)
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When I type sys in Python it says it is not defined... what is going on there? Thanks.
– Spacey
Oct 15 '14 at 21:32
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Store a closure as a variable in Swift
... (Float)->Void = { arg in }
due to the automatic type inference.
But what you probably want is that the completion handler is initialized to nil
in the same way that an Objective-C instance variable is inititialized to nil. In Swift
this can be realized with an optional:
var completionHandler...
Java - No enclosing instance of type Foo is accessible
...ou're trying to create an instance of Thing from a static context. That is what the compiler is complaining about.
There are a few possible solutions. Which solution to use depends on what you want to achieve.
Move Thing out of the Hello class.
Change Thing to be a static nested class.
static cl...
jQuery Event Keypress: Which key was pressed?
...omings and that is an unfortunate example, but for the Enter key, which is what this question is asking about, the situation is extremely simple.
– Tim Down
Jan 25 '11 at 12:40
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Play/pause HTML 5 video using JQuery
...p. When I remove the $('#videoId').get(0).play() line there is no problem. What is the best way around this? I was thinking I could remove the js with a condtional statement for iOS - the video will not autostart for iOS devices anyway so would be happy to do this - or is there a simpler solution? A...
Find out if ListView is scrolled to the bottom?
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I don't want to start a new question, but what do I do if my listview is stackFromBottom ? I tried if (0 == firstVisibleItem){//listviewtop} but that is getting called repeatedly.
– shadyinside
Jul 5 '14 at 19:22
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How to hash some string with sha256 in Java?
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What's the point of bitwise &-ing a byte value with 0xff? It yields nothing, does it?
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':app:lintVitalRelease' error when generating signed apk
...nd turning off the lint checks, they're there for a reason. Instead, check what the error is and fix it.
The error report is saved to [app module]/build/reports/lint-results-yourBuildName-fatal.html. You can open this file in a browser to read about the errors.
It would be nice if Gradle could ma...
Difference between JOIN and INNER JOIN
...ys a major role. The fact that when it says INNER JOIN, you can be sure of what it does and that it's supposed to be just that, whereas a plain JOIN will leave you, or someone else, wondering what the standard said about the implementation and was the INNER/OUTER/LEFT left out by accident or by purp...
Set mouse focus and move cursor to end of input using jQuery
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This is the right answer, setting exactly what you want to set without kludging it.
– Dan Barron
Apr 18 '19 at 13:02
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