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Jackson how to transform JsonNode to ArrayNode without casting?
...s;
Streams.stream(datasets.withArray("datasets").elements())
.forEach( item -> System.out.print(item.toString()) )
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How to make PyCharm always show line numbers
...rent document :D and tried on the options but didn't focus into Appearance item.
– m3nda
Aug 22 '15 at 6:45
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How to delete a record in Django models?
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If you want to delete one item
wishlist = Wishlist.objects.get(id = 20)
wishlist.delete()
If you want to delete all items in Wishlist for example
Wishlist.objects.all().delete()
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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
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fix json values,
it's add \ before u{xxx} to all +" "
$item = preg_replace_callback('/"(.+?)":"(u.+?)",/', function ($matches) {
$matches[2] = preg_replace('/(u)/', '\u', $matches[2]);
$matches[2] = preg_replace('/(")/', '"', $matches[2]);
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How to set initial size of std::vector?
I have a vector<CustomClass*> and I put a lot of items in the vector and I need fast access, so I don't use list. How to set initial size of vector (for example to be 20 000 places, so to avoid copy when I insert new)?
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How to do parallel programming in Python?
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Just lists I think. But you can just pass in dict.items() which will be a list of key value tuples
– Matt Williamson
Jun 10 '15 at 14:00
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How do I use pagination with Django class based generic ListViews?
...nt().sort_values(ascending=False).to_dict()
ipc = tuple(ipc.to_dict().items())
urlc = tuple(urlc.items())
pages = []
page_keys = ['page1', 'page2']
for obj, name in zip([urlc, ipc], page_keys):
paginator = Paginator(obj, 20)
page = self.request.GET.get(name)
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CSS vertical alignment of inline/inline-block elements
... wrap to the next line when the browser gets too small. Sometimes you need items to stay inline even beyond the browser bounds and thus, inline-block is the only solution.
– Jake Wilson
Feb 13 '13 at 19:10
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Converting a Java Keystore into PEM Format
...rror:p12_decr.c:104: 139848775526048:error:2306A075:PKCS12 routines:PKCS12_item_decrypt_d2i:pkcs12 pbe crypt error:p12_decr.c:130. What is the solution for this?
– Udara S.S Liyanage
Mar 18 '13 at 7:39
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Linq select objects in list where exists IN (A,B,C)
...nd there'll be performance issues with array if it contains more than 1000 items. var allowedStatus = new HashSet<string> { "A", "B", "C" };
– Jay Shah
Nov 9 '18 at 18:14
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