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Using Linq to get the last N elements of a collection?
...
.NET Core 2.0+ provides the LINQ method TakeLast():
https://docs.microsoft.com/en-us/dotnet/api/system.linq.enumerable.takelast
example:
Enumerable
.Range(1, 10)
.TakeLast(3) // <--- takes last 3 items
.ToList()
.ForEach(i => System.Console.WriteLine(i)...
How to add custom validation to an AngularJS form?
...will not be able to submit the form.
For more use cases and examples see: https://github.com/turinggroup/angular-validator
Disclaimer: I am the author of Angular-Validator
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How to decide font color in white or black depending on background color?
...the concept. You can also generate your own JS formula right in the demo.
https://harthur.github.io/brain/
Below are some charts that helped me get my mind around the problem.
In the first chart, lightness is a constant 128, while hue and saturation vary. In the second chart, saturation is a const...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...ubmitted an issue to Chromium and ask them to fix this confusing printing:
https://bugs.chromium.org/p/chromium/issues/detail?id=732021
UPDATE: It's already fixed. Chrome now printed as:
new Array(2) // (2) [empty × 2]
...
AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
...text" ng-model="rootFolders" ng-init="rootFolders='Bob'" value="Bob">
https://groups.google.com/d/msg/angular/Hn3eztNHFXw/wk3HyOl9fhcJ
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Convert SVG image to PNG with PHP
...an example here I did for a former employer's sales territory map:
Start: https://upload.wikimedia.org/wikipedia/commons/1/1a/Blank_US_Map_(states_only).svg
Finish:
Edit
Since writing the above, I've come up with 2 improved techniques:
1) instead of a regex loop to change the fill on state ...
Best way to parse command-line parameters? [closed]
... Scala Toolkit (CLIST)
here is mine too! (a bit late in the game though)
https://github.com/backuity/clist
As opposed to scopt it is entirely mutable... but wait! That gives us a pretty nice syntax:
class Cat extends Command(description = "concatenate files and print on the standard output") {
...
How to find where gem files are installed
...e => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /Users/ttm/.rbenv/versions/2.0.0-p247/bin
- /Users/ttm/.rbenv/libexec
- /Users/ttm/.rbenv/plugins/ruby-build/bin
- /Users/ttm/perl5/perlbrew/bin
- /Users/ttm/pe...
A std::map that keep track of the order of insertion?
...I view as holes in the C++ language for C++ library developers. Go here:
https://github.com/cubiclesoft/cross-platform-cpp
Grab:
templates/detachable_ordered_hash.cpp
templates/detachable_ordered_hash.h
templates/detachable_ordered_hash_util.h
If user-controlled data will be placed into the ha...
How do I move an existing Git submodule within a Git repository?
...ule modified.
$ git submodule deinit foo
$ git rm foo
$ git submodule add https://bar.com/foo.git new-foo
$ git status
renamed: foo -> new-foo
modified: .gitmodules
$ git commit -am "rename foo submodule to new-foo"
...