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Scala: Nil vs List()
...llo", 2 -> "world").foldLeft(List[String]())( (acc, el) => acc :+ el._2) res1: List[String] = List(hello, world) Using Nil as the accumulator here wouldn't work.
– Kevin Meredith
Nov 17 '13 at 4:57
...
Token Authentication for RESTful API: should the token be periodically changed?
... you can extend it to achieve this functionality.
For example:
from rest_framework.authentication import TokenAuthentication, get_authorization_header
from rest_framework.exceptions import AuthenticationFailed
class ExpiringTokenAuthentication(TokenAuthentication):
def authenticate_credentia...
How to enable C++11/C++0x support in Eclipse CDT?
...t; Paths and Symbols -> Symbols -> GNU C++. Click "Add..." and paste __GXX_EXPERIMENTAL_CXX0X__ (ensure to append and prepend two underscores) into "Name" and leave "Value" blank.
Hit Apply, do whatever it asks you to do, then hit OK.
There is a description of this in the Eclipse FAQ now as ...
How do I add multiple arguments to my custom template filter in a django template?
...[1,2,3,4] you will want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if args is None:
return False
arg_list = [arg.strip() for arg ...
How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
... It seems to me that if you redirect to the same page, then $_POST is cleared. As I understand it, that was the desired effect. That was MY desired effect, anyway. I think the answer would be better if it made that explicit, though.
– donutguy640
...
what's the correct way to send a file from REST web service to client?
...I, so you're not locked into Jersey):
@GET
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response getFile() {
File file = ... // Initialize this to the File path you want to serve.
return Response.ok(file, MediaType.APPLICATION_OCTET_STREAM)
.header("Content-Disposition", "attachme...
How to have git log show filenames like svn log -v
...ready been pulled in. For example:
git log --name-only --pretty=format: my_local_branch --not origin/master
Would show all the files that have been changed on the local branch, but not yet merged to the master branch on the remote.
...
Mongodb Explain for Aggregation framework
...erations
explain:true
db.collection.aggregate([
{ $project : { "Tags._id" : 1 }},
{ $unwind : "$Tags" },
{ $match: {$or: [{"Tags._id":"tag1"},{"Tags._id":"tag2"}]}},
{ $group: {
_id : "$_id",
count: { $sum:1 }
}},
{$sort: {"count":-1}}
],
{
explain...
Python integer incrementing with ++ [duplicate]
...ot seem to completely replace C++'s ++ operator.
– Dr_Zaszuś
Oct 12 '18 at 18:07
add a comme...
How do I convert a String to an InputStream in Java?
...ream = new ByteArrayInputStream(exampleString.getBytes(StandardCharsets.UTF_8));
Note that this assumes that you want an InputStream that is a stream of bytes that represent your original string encoded as UTF-8.
For versions of Java less than 7, replace StandardCharsets.UTF_8 with "UTF-8".
...