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python list by value not by reference [duplicate]
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what is the difference between a regular copy and a deep copy? Why does what happens above happen? I think I have a general understanding, it seems to be like the same problem encountered by the op at the second layer. How does it work internally?
–...
Convert XML to JSON (and back) using Javascript
How would you convert from XML to JSON and then back to XML?
12 Answers
12
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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...
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?
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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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appearanceWhenContainedIn in Swift
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UIBarButtonItem is not an UIView and needs to be extended separately
– Sergey Skoblikov
Apr 4 '15 at 9:59
7
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Relative URL to a different port number in a hyperlink?
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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'...
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...
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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