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Functions that return a function
... to the function, which can be assigned as you've done with var s = a(). s now contains a reference to the function b(), and calling s() is functionally equivalent to calling b().
// Return a reference to the function b().
// In your example, the reference is assigned to var s
return b;
Calling t...
Call Go functions from C
...me progress info to the user whenever it gets called. Since it has a well known signature, we can assign it its own type:
type ProgressHandler func(current, total uint64, userdata interface{}) int
This handler takes some progress info (current number of files received and total number of files) a...
Java, List only subdirectories from a directory, not files
...ry() && path.toString().contains("test")
or by date:
final long now = System.currentTimeMillis();
final long yesterday = new Date(now - 24 * 60 * 60 * 1000L).getTime();
// modified in the last 24 hours
(path, attributes) -> attributes.isDirectory() && attributes.lastModifiedTi...
Can I nest a element inside an using HTML5?
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Right now I have an <a> inside the <button> (with the same href) as a backup if JS is disabled, and six months from now I'm definitely going to be embarrassed that I admitted that.
– TheDudeAbides
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How to unstage large number of files without deleting the content
...these items before. $ git reset HEAD fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree. Use '--' to separate paths from revisions
– sarat
Aug 18 '11 at 7:17
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What is the `sensor` parameter for in the Google Places API?
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Edit: The sensor parameter is no longer required, and will now be ignored if it's used.
The parameter doesn't impact the results. It's a parameter that Google is required to collect for Google's data providers who charge differently based on whether the request uses a sensor or not....
Why is a boolean 1 byte and not 1 bit of size?
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Damn, now that is awkward Sir
– Asm
Jan 7 '11 at 15:05
31
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How to check if activity is in foreground or in visible background?
...liably. You might have the following situation: Resume A Resume B Pause A. Now activityVisible is false whereas the application is visible. Perhaps you use a visibility counter: visibleCounter ++ in onResume and visibleCounter -- in onPause.
– Joris Weimar
Mar ...
Uses for Optional
Having been using Java 8 now for 6+ months or so, I'm pretty happy with the new API changes. One area I'm still not confident in is when to use Optional . I seem to swing between wanting to use it everywhere something may be null , and nowhere at all.
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How do I find out which DOM element has the focus?
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If you can use jQuery, it now supports :focus, just make sure you are using version 1.6+.
This statement will get you the currently focused element.
$(":focus")
From: How to select an element that has focus on it with jQuery
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