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Get difference between two lists
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@Drewdin: Lists do not support the "-" operand. Sets, however, do, and that what is demonstrated above if you look closely.
– Godsmith
Oct 14 '14 at 21:21
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How do you see the entire command history in interactive Python?
I'm working on the default python interpreter on Mac OS X, and I Cmd + K (cleared) my earlier commands. I can go through them one by one using the arrow keys. But is there an option like the --history option in bash shell, which shows you all the commands you've entered so far?
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How to get datetime in JavaScript?
... answered Apr 30 '14 at 17:34
Andrew MaoAndrew Mao
30.2k1616 gold badges118118 silver badges205205 bronze badges
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Only using @JsonIgnore during serialization, but not deserialization
I have a user object that is sent to and from the server. When I send out the user object, I don't want to send the hashed password to the client. So, I added @JsonIgnore on the password property, but this also blocks it from being deserialized into the password that makes it hard to sign up users...
Is effective C++ still effective?
...t on his own blog
Which may lead you to wonder whether the information and advice in
this pre-C++0x edition of Effective C++ remains relevant. I'm pleased
to report that it does. Surprisingly so, in fact. Having spent nearly
two years steeped in the details of C++0x, I expected to groan a ...
Different results with Java's digest versus external utilities
... I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or websites? Everything external matches with each other, only Java is returning different result...
Mail multipart/alternative vs multipart/mixed
...sed to set the Content-Type to multipart/alternative when sending HTML and TEXT or multipart/mixed when sending TEXT and attachments.
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What does iterator->second mean?
...const X, Y>s. That's exactly what a map is - it pairs together the keys and the associated values.
When you iterate over a std::map, you're iterating over all of these std::pairs. When you dereference one of these iterators, you get a std::pair containing the key and its associated value.
std::...
Pure JavaScript: a function like jQuery's isNumeric() [duplicate]
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@Matt My comment was aimed at the comment and the note in the answer stating parseInt was the wrong way of doing this (then going ahead and using parseFloat, which doesn't really seem different). Interestingly isFinite will get you the result you're after in almost a...
CSS technique for a horizontal line with words in the middle
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This is my favourite solution. It works on OSX too and some of the others dont. If you use this solution remember to set the background of the span to the same color as the background of your page, it will be especially obvious what i mean if your background isn't white. ;)
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