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How do I uniquely identify computers visiting my web site?
...ique in our sample.
By observing returning visitors, we estimate how rapidly browser fingerprints might change over time. In our sample, fingerprints changed quite
rapidly, but even a simple heuristic was usually able to guess when a fingerprint was an “upgraded” version of a previously o...
What is 'Currying'?
... that does pretty much exactly what you've explained here: prototypejs.org/api/function/curry
– shuckster
Aug 30 '09 at 2:26
...
How to elegantly deal with timezones
...base in hand, you can use the ZoneInfo (tz database / Olson database) .NET API. Note that there isn't a binary distribution, you'll have to download the latest version and compile it yourself.
At the time of this writing, it currently parses all of the files in the latest data distribution (I actua...
How can I add some small utility functions to my AngularJS application?
...ner.
Also, as of the current version 1.4.2, Angular exposes a "Provider" API, which is allowed to be injected into config blocks. See these resources for more:
https://docs.angularjs.org/guide/module#module-loading-dependencies
AngularJS dependency injection of value inside of module.config
I d...
Pass props to parent component in React.js
...u can avoid any hookup with Child altogether.
JSX has a spread attributes API I often use on components like Child. It takes all the props and applies them to a component. Child would look like this:
var Child = React.createClass({
render: function () {
return <a {...this.props}> {this...
Mail multipart/alternative vs multipart/mixed
...e.multipart import MIMEMultipart
from email.mime.text import MIMEText
from apiclient import errors, discovery
import mimetypes
from email.mime.image import MIMEImage
from email.mime.audio import MIMEAudio
from email.mime.base import MIMEBase
SCOPES = 'https://www.googleapis.com/auth/gmail.send'
CLI...
Difference between add(), replace(), and addToBackStack()
...ill behave. WIll it replace all the frgaments in that container or android api have a method that accept three arguments, i.e. frgamentContainer, new fragment and with whom to replace.
– ved
Jun 21 '15 at 18:20
...
How to detect iPhone 5 (widescreen devices)?
...ime.
iOS 6 also offers new features about this.
Be sure to read the iOS 6 API changelog on Apple Developer website.
And check the new iOS 6 AutoLayout capabilities.
That said, if you really need to detect the iPhone 5, you can simply rely on the screen size.
[ [ UIScreen mainScreen ] bounds ].siz...
When to call activity context OR application context?
...wedException. These crashes occur on a wide range of Android versions from API 15 up to 22.
https://possiblemobile.com/2013/06/context/#comment-2443283153
Because it's not guaranteed that all operations described as supported by Application Context in the table below will work on all Android dev...
static const vs #define
...e translation unit actually seeing the value, which means enums in library APIs need the values exposed in the header, and make and other timestamp-based recompilation tools will trigger client recompilation when they're changed (bad!)
consts:
properly scoped / identifier clash issues handle...