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.NET List Concat vs AddRange
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They have totally different semantics.
AddRange modifies the list by adding the other items to it.
Concat returns a new sequence containing the list and the other items, without modifying the list.
Choose whichever one has the semantic...
How to use greater than operator with date?
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In your statement, you are comparing a string called start_date with the time.
If start_date is a column, it should either be
SELECT * FROM `la_schedule` WHERE start_date >'2012-11-18';
(no apostrophe)
or
SELECT * FROM `la_schedule` WHERE `start_date` >...
What is the difference between save and insert in Mongo DB?
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Save Vs Insert :
In your given examples, the behavior is essentially the same.
save behaves differently if it is passed with an "_id" parameter.
For save, If the document contains _id, it will upsert querying the collection on the _id field, If not, it will insert.
If a document does not...
Where does this come from: -*- coding: utf-8 -*-
... the text editor. Until now, I never knew that the python interpreter actually parsed the comment if it is present on the first two lines of the file.
– umeboshi
Dec 26 '14 at 3:08
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Create array of symbols
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Thanks this is really helpful.
– sonnyhe2002
Dec 18 '16 at 20:40
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Python pip install fails: invalid command egg_info
I find that recently often when I try to install a Python package using pip , I get the error(s) below.
15 Answers
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How to make unicode string with python3
... In Python3 a str is unicode, ie. it is "decoded" so it makes no sense to call decode on it
– John La Rooy
Apr 19 '16 at 9:43
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Static class initializer in PHP
I have an helper class with some static functions. All the functions in the class require a ‘heavy’ initialization function to run once (as if it were a constructor).
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How do I access the command history from IDLE?
...ommand from the top menu in IDLE: "Shell -> Previous History"
Incidentally, why don't you try a better (less ugly, for starters) shell like bpython or ipython?
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jQuery posting JSON
...mple scenarios, but the url-encoded message can be very problematic, especially for arrays of stuff.
– FMM
Sep 17 '12 at 19:14
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