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How can I determine whether a 2D Point is within a Polygon?

...integers. Many systems use integers for UI painting (pixels are ints after all), but macOS for example uses float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a point ...
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App store link for “rate/review this app”

... Note - the "type=Purple+Software" has to be there and it has to be literally "Purple Software" - it's not the name of your company, it's a codename for iPhone applications :) I wasted an hour before I figured this out... – Kuba Suder Oct 24 '11 at 11:27 ...
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Send attachments with PHP Mail()?

...a convenient place in your project. Include the main script file -- require_once('path/to/file/class.phpmailer.php'); Now, sending emails with attachments goes from being insanely difficult to incredibly easy: use PHPMailer\PHPMailer\PHPMailer; use PHPMailer\PHPMailer\Exception; $email = new PHP...
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How do you check in python whether a string contains only numbers?

....isdigit(): From the isdigit documentation: str.isdigit() Return True if all characters in the string are digits and there is at least one character, False otherwise. Digits include decimal characters and digits that need special handling, such as the compatibility superscript digits. This covers ...
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Find document with array that contains a specific value

... @AeroWang use this db.person.find( { favouriteFoods: { $all: ["sushi", "sashimi"] } } ) will return all person loving both "sushi" and "sashimi" someone pointed it a few answers below – benraay Jul 1 at 14:20 ...
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Exporting a function in shell

...n parent shell (bash, sh or ksh) so that the function will be available to all the child process launced from the parent process? ...
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AngularJS ng-click stopPropagation

... ngClick directive (as well as all other event directives) creates $event variable which is available on same scope. This variable is a reference to JS event object and can be used to call stopPropagation(): <table> <tr ng-repeat="user in users...
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Saving vim macros

... The :mkexrc (or :mkvimrc) command can be used to save all the current :map and :set settings to a file. See :help mkexrc for details. share | improve this answer | ...
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What is the difference between `sorted(list)` vs `list.sort()`?

...sorts the list in-place, mutating the list indices, and returns None (like all in-place operations). sorted() works on any iterable, not just lists. Strings, tuples, dictionaries (you'll get the keys), generators, etc., returning a list containing all elements, sorted. Use list.sort() when you wa...
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From inside of a Docker container, how do I connect to the localhost of the machine?

...as described in qoomon's answer. 2020-01: some progress has been made. If all goes well, this should land in Docker 20.04 TLDR Use --network="host" in your docker run command, then 127.0.0.1 in your docker container will point to your docker host. Note: This mode only works on Docker for Linux...