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How can I tell how many objects I've stored in an S3 bucket?
Unless I'm missing something, it seems that none of the APIs I've looked at will tell you how many objects are in an S3 bucket / folder(prefix). Is there any way to get a count?
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How to force an entire layout View refresh?
...wer the question: Use invalidate():
public void invalidate ()
Since: API Level 1
Invalidate the whole view. If the view is visible, onDraw(Canvas) will be called at some point in the future. This must be called from a UI thread. To call from a non-UI thread, call postInvalidate().
ViewG...
Get event listeners attached to node using addEventListener
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@user973810: How do you want him to justify this? The DOM API provides no way to do it and there are no non-standard ways to do it in current browsers. As to why this is the case, I don't really know. It seems a reasonable thing to want to do.
– Tim Down
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Programmatically select text in a contenteditable HTML element?
... and IE 9. You can also create selections down to the character level. The APIs you need are DOM Range (current spec is DOM Level 2, see also MDN) and Selection, which is being specified as part of a new Range spec (MDN docs).
function selectElementContents(el) {
var range = document.createRang...
How to select rows from a DataFrame based on column values?
...sitional indexing (df.iloc[...])
Label indexing (df.xs(...))
df.query(...) API
Below I show you examples of each, with advice when to use certain techniques. Assume our criterion is column 'A' == 'foo'
(Note on performance: For each base type, we can keep things simple by using the pandas API or ...
Managing relationships in Laravel, adhering to the repository pattern
...ontrollers are the HTTP layer and route requests through to the underlying apis (aka, it controls the flow)
Models represent the database schema, and tell the application what the data looks like, what relationships it may have, as well as any global attributes that may be necessary (such as a name ...
How do I determine if a port is open on a Windows server? [closed]
...ted to check as I think this already answers my question. When I do telnet api-3t.sandbox.paypal.com 443 I get Connecting to api-3t.sandbox.paypal.com...Could not open connection to the host on port 443: Connect failed Is this because the firewall is blocking it?
– Popeye
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Android: Temporarily disable orientation changes in an Activity
... to ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE it will flip upside down. In API 9, ActivityInfo introduces SCREEN_ORIENTATION_REVERSE_LANDSCAPE constant, but I don't see a way to detect such orientation through Configuration class.
– Błażej Czapp
Apr 20 '12 at...
Does Internet Explorer 8 support HTML 5?
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IE8 beta 2 supports two APIs from HTML5: cross-document messaging and non-SQL storage.
IE8 beta 2 doesn’t implement the HTML5 parsing algorithm or the new elements (no <canvas> or <video> support).
There are also bug fixes that align...
Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
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In short, it took 18 years for Java to get a correctly designed date/time API built-in, but JavaScript is still stuck back in the dark ages. We do indeed have excellent libraries like Moment.js, date-fns, and js-joda. But as of now, there is nothing more than Date built-in to the language. Hopef...