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Sort points in clockwise order?
...l be able to hold the result of performed calculations.
If you want to achieve something looking solid, as convex as possible, then I guess you're looking for a Convex Hull. You can compute it using the Graham Scan.
In this algorithm, you also have to sort the points clockwise (or counter-clockwise...
Sanitizing strings to make them URL and filename safe?
...le-dependent. It's not clear whether this is the locale of the server or client. From the PHP docs:
A "word" character is any letter or digit or the underscore character, that is, any character which can be part of a Perl "word". The definition of letters and digits is controlled by PCRE's...
Match multiline text using regular expression
...ing java. When I use the Pattern class with the Pattern.MULTILINE modifier, I am able to match, but I am not able to do so with (?m).
...
Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
... disappeared so here's a new one: plnkr.co/edit/kZZks8HN0iFIY8ZaKJkA?p=preview Open the JS console to see the log statements
– user879121
Nov 19 '14 at 22:28
...
Android custom dropdown/popup menu
...nceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
/...
How to use concerns in Rails 4
...ith the
default app/models/concerns and app/controllers/concerns directories
that are automatically part of the load path. Together with the
ActiveSupport::Concern wrapper, it’s just enough support to make this
light-weight factoring mechanism shine.
...
How to detect when cancel is clicked on file input?
...works with onfocus (requiring a pretty limiting event blocking) you can achieve it with the following:
document.body.onfocus = function(){ /*rock it*/ }
What's nice about this, is that you can attach/detach it in time with the file event, and it also seems to work fine with hidden inputs (a defin...
What is a callback function?
...'. Just understand that it is just a name to describe a method that's supplied as an argument to another method, such that when the parent method is called (whatever condition, such as a button click, a timer tick etc) and its method body completes, the callback function is then invoked.
Some langu...
Why shouldn't I use “Hungarian Notation”?
... past misuse of Hungarian notation. Prepending type information to identifiers is not only useless but it may actually do harm. First, readability is less fluent. Second, in languages that support polymorphism or duck-typing the wrong information is passed.
– wilhelmtell
...
Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...e of service.
The process starts by getting a merchant account setup and tied to your bank account. You may want to check with your bank, because a lot of major banks provide merchant services. You may be able to get deals, because you are already a customer of theirs, but if not, then you can sh...