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Easy way to prevent Heroku idling?

... or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great). Note: to all those saying it doesn't work: the important part in my answer is "availability monitor". Just installing the addon won't help. You also need to s...
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Large, persistent DataFrame in pandas

I am exploring switching to python and pandas as a long-time SAS user. 6 Answers 6 ...
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How to get distinct values from an array of objects in JavaScript?

... If this were PHP I'd build an array with the keys and take array_keys at the end, but JS has no such luxury. Instead, try this: var flags = [], output = [], l = array.length, i; for( i=0; i<l; i++) { if( flags[array[i].age]) continue; flags[array[i].age] = true; ...
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Presenting a UIAlertController properly on an iPad using iOS 8

...tyle:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) { // do destructive stuff here }]; otherAction = [UIAlertAction actionWithTitle:@"Blah" ...
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How can I display a pdf document into a Webview?

..., until now if you want to read PDF, you must install a PDF reader on your Android phone, or use webview to render PDF file online. Sorry but we cannot use the second method to read PDF offline. – anticafe Jun 6 '11 at 10:23 ...
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Relative URL to a different port number in a hyperlink?

... It would be nice if this could work, and I don't see why not because : is a reserved character for port separation inside the URI component, so the browser could realistically interpret this as a port relative to this URL, but unfortunately it doesn't and there'...
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unobtrusive validation not working with dynamic content

...ic element to the form is either You could remove the form's validation and re validate it like this: var form = $(formSelector) .removeData("validator") /* added by the raw jquery.validate plugin */ .removeData("unobtrusiveValidation"); /* added by the jquery unobtrusive plugin*/ $.va...
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Long press gesture on UICollectionViewCell

...cognizer alloc] initWithTarget:self action:@selector(handleLongPress:)]; lpgr.delegate = self; lpgr.delaysTouchesBegan = YES; [self.collectionView addGestureRecognizer:lpgr]; } -(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer { if (gestur...
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How to use the 'main' parameter in package.json?

...mary entry point to your program. That is, if your package is named foo, and a user installs it, and then does require("foo"), then your main module's exports object will be returned. This should be a module ID relative to the root of your package folder. For most modules, it makes...
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moveCamera with CameraUpdateFactory.newLatLngBounds crashes

I'm making use of the new Android Google Maps API . 20 Answers 20 ...