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What is tail call optimization?
...example, written in Python, if you enter a value of 1000 you get a "RuntimeError: maximum recursion depth exceeded" because the default Python implementation does not support Tail Recursion Elimination. See a post from Guido himself explaining why that is: neopythonic.blogspot.pt/2009/04/tail-recurs...
Spring Test & Security: How to mock authentication?
... Hi, while testing as mentioned by GKislin. I am getting following error "Authentication failed UserDetailsService returned null, which is an interface contract violation" . Any suggestion please. final AuthenticationRequest auth = new AuthenticationRequest(); auth.setUsername(us...
How to git-svn clone the last n revisions from a Subversion repository?
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+1 from me - helped me get round an error 128 issue I was having cloning an entire svn repo
– Ian Oxley
Nov 8 '11 at 12:27
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Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
...ridView using Entity Frameworkm but every time I am getting the following error:
7 Answers
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PDO Prepared Inserts multiple rows in single query
...ields although $datafield is used in $sql. Thus copy paste would result in error. Please do rectify. Thanks for this solution though.
– pal4life
Feb 14 '12 at 0:48
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Only detect click event on pseudo-element
...offsetY/X and e.clientY/X issue between browsers.
Through my trial and error, I started to use the clientX and clientY mouse coordinates in the jQuery event object. These coordinates gave me the X and Y offset of the mouse relative to the top-left corner of the browser's view port. As I was read...
How to make the tab character 4 spaces instead of 8 spaces in nano?
...nanorc to do this seems to be
set tabsize 4
Setting tabspace gave me the error:
'Unknown flag "tabspace"'
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fatal: Not a valid object name: 'master'
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I managed to get it all working. No errors. But when I try to push it says: Writing objects <bla>bla> Total <3/3> To SERVER 59fa0tweirdcod04 master> master But when I check the files on the server nothing is there.
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How do you list the active minor modes in emacs?
... (add-to-list 'active-modes mode))
(error nil) ))
minor-mode-list)
(message "Active modes are %s" active-modes)))
Note: this only works for the current buffer (because the minor modes might be only enabled in certain buffers).
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Using current time in UTC as default value in PostgreSQL
...WITHOUT TIME ZONE DEFAULT (NOW() AT TIME ZONE "UTC") NOT NULL; fails with: ERROR: column "UTC" does not exist. Make sure 'utc' is all lower-case.
– code_dredd
Nov 22 '19 at 1:00
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