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Return from lambda forEach() in java
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Here filter restricts the stream to those items that match the predicate, and findFirst then returns an Optional with the first matching entry.
This looks less efficient than the for-loop approach, but in fact findFirst() can short-circuit - it doesn't generate the entire filtered stream and then ...
Maven is not working in Java 8 when Javadoc tags are incomplete
Since I use Maven I have been able to build and install in my local repository projects that have incomplete Javadoc tags (for example, a missing parameter).
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How do I use Django templates without the rest of Django?
...Django-based web site. How do I use it without having a settings.py file (and others) and having to set the DJANGO_SETTINGS_MODULE environment variable?
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Naming convention for Scala constants?
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The officially recommended style (and I do mean officially) is the first style, camel case with first letter are upper case. It's laid down clearly by Odersky on Programming in Scala.
The style is also followed by the standard library, and has some support i...
Performance of FOR vs FOREACH in PHP
First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and...
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Why aren't my breakpoints working?
... in the graphical tree display of your project, right click on your Target and do "Get Info." Look for a property named "Generate Debug Symbols" (or similar) and make sure this is CHECKED (aka ON). Also, you might try finding (also in Target >> Get Info) a property called "Debug Information ...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
... The recast function (also from reshape2) integrates the melt and dcast function in one go for tasks like this: recast(df1, year + month ~ variable, sum, id.var = c("date", "year", "month"))
– Jaap
May 13 '16 at 6:17
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REST API Authentication
...eraction with from any platform (Web App, Mobile App). What I'm not understanding is that when using the REST API, how do we authenticate the user.
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Encrypt & Decrypt using PyCrypto AES 256
...build two functions using PyCrypto that accept two parameters: the message and the key, and then encrypt/decrypt the message.
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Identifying the dependency relationship for python packages installed with pip
...cies for packages installed by conda: e.g. in a conda env where matplotlib and numpy were installed using pip, but scipy was installed using conda, scipy shows up in the pipdeptree as having no depencies and no dependents (also pip show scipy shows no requirements).
– djvg
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