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Handle ModelState Validation in ASP.NET Web API

...ile services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2).ConfigureApiBehaviorOptions(options => { options.InvalidModelStateResponseFactory = (context) => { var errors = context.ModelState.Values.SelectMany(...
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Remove folder and its contents from git/GitHub's history

I was working on a repository on my GitHub account and this is a problem I stumbled upon. 8 Answers ...
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How do I restore a dump file from mysqldump?

... It should be as simple as running this: mysql -u <user> -p < db_backup.dump If the dump is of a single database you may have to add a line at the top of the file: USE <database-name-here>; If it was a dump of many databases, the use statements are already in there. To run the...
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How to format a number as percentage in R?

...s pointed out by @DzimitryM, percent() has been "retired" in favor of label_percent(), which is a synonym for the old percent_format() function. label_percent() returns a function, so to use it, you need an extra pair of parentheses. library(scales) x <- c(-1, 0, 0.1, 0.555555, 1, 100) label_pe...
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Efficiently test if a port is open on Linux?

...t recent distros ship with: Fedora, Centos, etc. (nmap-ncat-6.01-9.fc18.x86_64) – Zack Dec 20 '15 at 14:13 9 ...
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Difference between map and collect in Ruby?

... There's no difference, in fact map is implemented in C as rb_ary_collect and enum_collect (eg. there is a difference between map on an array and on any other enum, but no difference between map and collect). Why do both map and collect exist in Ruby? The map function has many namin...
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How to convert Set to Array?

... values in an array and then converting back to an Array, try using this: _.uniq([]) This relies on using underscore or lo-dash. share | improve this answer | follow ...
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Resetting remote to a certain commit

I want to discard all changes done after commit <commit-hash> . So I did: 9 Answers ...
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What does “export” do in shell programming? [duplicate]

...o child processes $ env | grep '^variable=' variable=Hello $ $ export other_variable=Goodbye # create and initialize exported variable $ env | grep '^other_variable=' other_variable=Goodbye $ For more information, see the entry for the export builtin in the GNU Bash manual, and also the sections...
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What character to use to put an item at the end of an alphabetic list?

...C3 Alt 229 τ tau U+03C4 Alt 231 Φ phi upper U+03A6 Alt 232 φ phi lower U+03C6 Alt 237 Ω omega U+03A9 Alt 234 share | improve this answer | ...