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Code Golf: Collatz Conjecture
...
x86 assembly, 1337 characters
;
; To assemble and link this program, just run:
;
; >> $ nasm -f elf collatz.asm && gcc -o collatz collatz.o
;
; You can then enjoy its output by passing a number to it on the command line:
;
; >> $ ./collatz 123
; >&...
How default .equals and .hashCode will work for my classes?
...t's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, f...
In Django, how does one filter a QuerySet with dynamic field lookups?
...endswith'): 'Z'
}
Person.objects.filter(**kwargs)
This is a very common and useful Python idiom.
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Where could I buy a valid SSL certificate? [closed]
...o beat. A certificate says to the client that you are who you say you are, and the issuer has verified that to be true.
You can get a free SSL certificate signed, for example, by StartSSL. This is an improvement on self-signed certificates, because your end-users would stop getting warning pop-ups ...
Calculate RSA key fingerprint
...
Run the following command to retrieve the SHA256 fingerprint of your SSH key (-l means "list" instead of create a new key, -f means "filename"):
$ ssh-keygen -lf /path/to/ssh/key
So for example, on my machine the command I ran was (using RSA pu...
How can I keep my fork in sync without adding a separate remote?
...forked it.
Click on Create pull request:
Give the pull request a title and maybe a description and click Create pull request.
On the next page, scroll to the bottom of the page and click Merge pull request and Confirm merge.
Your Git repository me/foobar will be updated.
Edit: rebase options ...
How to get package name from anywhere?
I am aware of the availability of Context.getApplicationContext() and View.getContext() , through which I can actually call Context.getPackageName() to retrieve the package name of an application.
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What is the difference between 'log' and 'symlog'?
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I finally found some time to do some experiments in order to understand the difference between them. Here's what I discovered:
log only allows positive values, and lets you choose how to handle negative ones (mask or clip).
symlog means symmetrical log, and allows positive and negative valu...
Vertically align an image inside a div with responsive height
...Here is a technique to align inline elements inside a parent, horizontally and vertically at the same time:
Vertical Alignment
1) In this approach, we create an inline-block (pseudo-)element as the first (or last) child of the parent, and set its height property to 100% to take all the height of i...
Javascript objects: get parent [duplicate]
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No. There is no way of knowing which object it came from.
s and obj.subObj both simply have references to the same object.
You could also do:
var obj = { subObj: {foo: 'hello world'} };
var obj2 = {};
obj2.subObj = obj.subObj;
var s = obj.subObj;
You now have three references, obj...