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Best practice to validate null and empty collection in Java
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I don't understand if m is null then .isEmpty() will cause NullPointerException rigth? otherwise, if the left side (m==null) is true then the remaining will not be checked
– Ismail Sahin
Jul 29 '16 at 8:46
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How does the Google “Did you mean?” Algorithm work?
...ery ( with the corrected word ) and this time that 90% clicks on a result, then they know they have found a correction.
They can also know if those are "related" queries of two different, because they have information of all the links they show.
Furthermore, they are now including the context in...
How to use the 'main' parameter in package.json?
...gram. That is, if your package is named foo, and a user installs
it, and then does require("foo"), then your main module's exports
object will be returned.
This should be a module ID relative to the root of your package
folder.
For most modules, it makes the most sense to have a main...
How to make zsh run as a login shell on Mac OS X (in iTerm)?
...that's your real question (rather than how to make zsh run as login shell) then perhaps you should reword the question in the title.
– iconoclast
Feb 10 '11 at 17:45
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calculating the difference in months between two dates
...yield one month or zero months difference? If you say it should yield one, then what about July 31, 2009 and August 1, 2009? Is that a month? Is it simply the difference of the Month values for the dates, or is it more related to an actual span of time? The logic for determining all of these rules i...
Equivalent of LIMIT and OFFSET for SQL Server?
... @Aaronaught If my Table has 200k records, it will fetch all first, then apply limit ? Is this query efficient ?
– Jigar
Jun 20 '16 at 7:15
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How does cookie based authentication work?
Can someone give me a step by step description of how cookie based authentication works? I've never done anything involving either authentication or cookies. What does the browser need to do? What does the server need to do? In what order? How do we keep things secure?
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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...t. If any server allocates different server-ports after a socket is bound, then in my opinion the server is wasting its resource and it must be needing the client to connect again to the new port assigned.
A bit more for completeness:
Example 2: It's a very interesting question: "can two different...
Django 1.7 - makemigrations not detecting changes
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If you're changing over from an existing app you made in django 1.6, then you need to do one pre-step (as I found out) listed in the documentation:
python manage.py makemigrations your_app_label
The documentation does not make it obvious that you need to add the app label to the command,...
master branch and 'origin/master' have diverged, how to 'undiverge' branches'?
...ctively."
, check if you need to update origin. If origin is up-to-date, then some commits have been pushed to origin from another repo while you made your own commits locally.
... o ---- o ---- A ---- B origin/master (upstream work)
\
C master (your work)...