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How to implement a secure REST API with node.js
...n be accessed from a mobile phone and from the browser so I need an api to allow users to signup, login and do some specific tasks. Furthermore, I need to support scalability, the same code running on different processes/machines.
Because users can CREATE resources (aka POST/PUT actions) you need t...
Do I need to create indexes on foreign keys on Oracle?
...t PostgreSQL - at least at the time of this post - does not do it automatically.
– The Dembinski
Jan 6 '17 at 21:35
Sa...
Can Maven be made less verbose?
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In maven 3.5.x I actually need to enable --batch-mode (-B) for the -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn trick to work.
– Auke
Oct 20 '17 at 12:44
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How to include *.so library in Android Studio?
...how to add a *.so library to Android Studio, but none of them works, especially when it comes to the point of text: This does not work with the newer xxx (Android Studio, gradle, ...)
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Update a dataframe in pandas while iterating row by row
...pproach better vs adding a lagged column or is the effect negligible for small datasets? (< 10k rows)
– Yuca
Aug 8 '18 at 18:55
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What's the best method in ASP.NET to obtain the current domain?
... Not that I know of, Jan Aagaard, but you could always make one locally. I do that for most "magic" strings and numbers. For that matter, you would then use string.Empty instead of "" in Carlos' answer ;)
– vbullinger
Aug 10 '12 at 21:34
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...s a sizable difference - one is considered an object, which means you can call methods and interact with it in abstract data structures, like List. The other is a primitive, which is just a raw value.
– Makoto
Jan 2 '14 at 6:07
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How can I remove a commit on GitHub? [duplicate]
I "accidentally" pushed a commit to GitHub.
21 Answers
21
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How to represent multiple conditions in a shell if statement?
...n this particular case, the parentheses aren't even needed, because -a actually has higher precedence than -o (unlike && and || in the shell - however, inside bash [[ ... ]] conditionals, && also has higher precedence than || ). If you wanted to avoid -a and -o for maximum robustness...
Why are variables “i” and “j” used for counters?
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It comes ultimately from mathematics: the summation notation traditionally uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation):
It's also used that way for collections of things, like if you have a bunch of variables x1, x2, ......