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What exactly does Perl's “bless” do?
...onsole.log(animal.sound);
})();
The function takes a hash table of unordered properties(since it makes no sense to have to write properties in a specific order in dynamic languages in 2016) and returns a hash table with those properties, or if you forgot to put the new keyword, it will return ...
Adding new column to existing DataFrame in Python pandas
...
Super simple column assignment
A pandas dataframe is implemented as an ordered dict of columns.
This means that the __getitem__ [] can not only be used to get a certain column, but __setitem__ [] = can be used to assign a new column.
For example, this dataframe can have a column added to it by...
How to stop text from taking up more than 1 line?
...ments" comment is right. If you try this in an anchor, paragraph, heading, etc, this does not work. You need to do something like p.oneline { white-space:nowrap; overflow:hidden; display:block;}
– Alex Angelico
May 11 '17 at 13:33
...
Media query to detect if device is touchscreen
...ery features.
if (Modernizr.touch){
// bind to touchstart, touchmove, etc and watch `event.streamId`
} else {
// bind to normal click, mousemove, etc
}
However, using CSS, there are pseudo class like, for example in Firefox. You can use :-moz-system-metric(touch-enabled). But these feature...
Difference between static STATIC_URL and STATIC_ROOT on Django
...com/static/. now you only need to serve this directory on apache or nginx..etc.
STATIC_URL
The URL of which the static files in STATIC_ROOT directory are served(by Apache or nginx..etc).
Example: /static/ or http://static.example.com/
If you set STATIC_URL = 'http://static.example.com/', t...
What does enumerable mean?
..., "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", /* etc. */]
Each of these properties still exists on the object:
console.log('constructor' in foo); // true
console.log('toString' in foo); // true
// etc.
But, they're skipped by the for..in loop because they aren't enu...
Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
...o perform it's own thread initialization (setting up thread local storage, etc.).
In practice, this means that CreateThread() should pretty much never be used directly by your code.
The MSDN documents for _beginthread()/_beginthreadex() have quite a bit of detail on the differences - one of the mo...
Array Size (Length) in C#
...ress the . key it shows you a list of all the methods, properties, events, etc. available on that object. When you highlight a member it gives you a brief description of what it does.
Press F1
If you find a method or property that might do what you want but you're not sure, you can move the curs...
What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get
...gine that you'd have to create a whole car around it with steering, brakes etc... Car manufacturers produce completed cars, with a friendly interface (pedals, steering wheel etc.) so you don't have to do it all yourself.
sha...
Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
... be simple, but it hides some traps I'm trying to figure.
-- SERVER --
In /etc/ssh/sshd_config, set passwordAuthentication yes to let the server temporarily accept password authentication
-- CLIENT --
consider Cygwin as Linux emulation and install & run OpenSSH
1. Generate private and public k...