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How does Google's Page Speed lossless image compression work?
...e files that can be stripped away if filesize is your primary concern. I know that info is out there on the web, I just wanted to have a nice place to collate it here on SO.
– Drew Noakes
Mar 27 '11 at 19:10
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Rails Observer Alternatives for 4.0
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They are in a plugin now.
Can I also recommend an alternative which will give you controllers like:
class PostsController < ApplicationController
def create
@post = Post.new(params[:post])
@post.subscribe(PusherListener.new)
@...
Getting the location from an IP address [duplicate]
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I have been using hostip.info for a year now and I'm NOT impressed. It usually return unknown 9/10 checks
– aron
Jun 30 '10 at 14:32
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ViewPager and fragments — what's the right way to store fragment's state?
... separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!
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Create or write/append in text file
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does this create a text file if it does not exist?
– Jerahmeel Acebuche
Jul 26 '14 at 15:19
5
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Algorithm to detect overlapping periods [duplicate]
I've to detect if two time periods are overlapping.
Every period has a start date and an end date.
I need to detect if my first time period (A) is overlapping with another one(B/C).
In my case, if the start of B is equal to the end of A, they are not overlapping(the inverse too)
I found th...
Python Dictionary Comprehension
...n't use them to add keys to an existing dictionary. Also, you have to specify the keys and values, although of course you can specify a dummy value if you like.
>>> d = {n: n**2 for n in range(5)}
>>> print d
{0: 0, 1: 1, 2: 4, 3: 9, 4: 16}
If you want to set them all to True:
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jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL
I have an angular service called requestNotificationChannel :
17 Answers
17
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error LNK2019: 无法解析的外部符号_socket，该符号在函数 中被引用 - C/C+...
error LNK2019: 无法解析的外部符号_socket，该符号在函数 中被引用1>NetClient.obj : error LNK2019: 无法解析的外部符号 _closesocket@4，该符号在函数 _main 中被引用1>NetClient.obj : error L...1>NetClient.obj : error LNK2019: 无法解析的外部符号 _closesocket@...
Iterating each character in a string using Python
...open(filename) as f:
for line in f:
# do something with line
If that seems like magic, well it kinda is, but the idea behind it is really simple.
There's a simple iterator protocol that can be applied to any kind of object to make the for loop work on it.
Simply implement an iterat...