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iOS: how to perform a HTTP POST request?
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I thought I would update this post a bit and say that alot of the iOS community has moved over to AFNetworking after ASIHTTPRequest was abandoned. I highly recommend it. It's a great wrapper around NSURLConnection and allows for asynchronous calls, and basically...
How do I view cookies in Internet Explorer 11 using Developer Tools
...Well, I guess this kind of explains why, whenever I've finished installing Windows 10 on a new laptop, my first port of call is to go and download Chrome. Microsoft just doesn't do user-friendly very well, do they...? ;-)
– Mike Gledhill
May 25 '18 at 7:43
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Print number of keys in Redis
...b63575307aaffe0a
redis_mode:standalone
os:Linux 5.4.0-1017-aws x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:9.3.0
process_id:2854672
run_id:90a5246f10e0aeb6b02cc2765b485d841ffc924e
tcp_port:6379
uptime_in_seconds:2593097
uptime_in_days:30
hz:10
configured_hz:10...
What are the advantages of NumPy over regular Python lists?
...definitely would for a billion cells -- neither approach would fit in a 32-bit architecture, but with 64-bit builds NumPy would get away with 4 GB or so, Python alone would need at least about 12 GB (lots of pointers which double in size) -- a much costlier piece of hardware!
The difference is most...
How to write WinForms code that auto-scales to system font and dpi settings?
Intro: There's a lot of comments out there that say "WinForms doesn't auto-scale to DPI/font settings well; switch to WPF." However, I think that is based on .NET 1.1; it appears they actually did a pretty good job of implementing auto-scaling in .NET 2.0. At least based on our research and testing...
Why is XOR the default way to combine hashes?
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Assuming uniformly random (1-bit) inputs, the AND function output probability distribution is 75% 0 and 25% 1. Conversely, OR is 25% 0 and 75% 1.
The XOR function is 50% 0 and 50% 1, therefore it is good for combining uniform probability distributions.
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How to read a single character from the user?
... and it is returned (sort of like getch() ). I know there's a function in Windows for it, but I'd like something that is cross-platform.
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Web-scraping JavaScript page with Python
...lt:
2.1.1
Example
To give an example, I created a sample page with following HTML code. (link):
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Javascript scraping test</title>
</head>
<body>
<p id='intro-text'>No javascript...
How to save a PNG image server-side, from a base64 data string
...swered Jul 16 '12 at 19:55
drew010drew010
63.1k1010 gold badges116116 silver badges146146 bronze badges
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WebSockets protocol vs HTTP
...However, it's not real-time data from the server where you get the biggest win. You can get almost as good server->client latency using HTTP streaming/long-held connections. And with long-held requests servers can effectively send whenever they have data because the client has already sent the re...