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How to switch position of two items in a Python list?
...The simple Python swap looks like this:
foo[i], foo[j] = foo[j], foo[i]
Now all you need to do is figure what i is, and that can easily be done with index:
i = foo.index("password2")
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im...
Detect If Browser Tab Has Focus
...le only one can have focus. Use whichever technique suits your needs, but know the difference.
– jaredjacobs
Sep 19 '18 at 16:47
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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... local id = 0;
local ttl = 100;
local now = ngx.time();
local config = ngx.shared.config;
if not config:get("id") then
config:set("id", "0");
end
while id >= tonumber(config:get("id")) do
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How should I use git diff for long lines?
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I can't remember for sure now. But found some links that explain it more: michael.otacoo.com/linux-2/avoid-escape-characters-in-git superuser.com/questions/366930/… unix.stackexchange.com/questions/19317/…
– Shoan
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LINQ's Distinct() on a particular property
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EDIT: This is now part of MoreLINQ.
What you need is a "distinct-by" effectively. I don't believe it's part of LINQ as it stands, although it's fairly easy to write:
public static IEnumerable<TSource> DistinctBy<TSource, TKey>...
How to disassemble one single function using objdump?
...n page isn't definitive. For a long time it wasn't really maintained, but now I think it's generated from the main docs. Also "gdb --help" is more complete now too.
– Tom Tromey
Oct 18 '14 at 2:33
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How to add directory to classpath in an application run profile in IntelliJ IDEA?
...", choose Classes (even if it's properties), press OK and OK again
You can now run your application and it will have the selected path in the class path
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How do you design object oriented projects? [closed]
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Adding to what Scott Davies had to say:
Make absolutely sure you know what your program is all about before you start. What is your program? What will it not do? What problem is it trying to solve?
Your first set of use cases shouldn't be a laundry list of everything the program will eve...
NSUserDefaults - How to tell if a key exists
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I know this is old, but having only just now needed this information, I need to point out that the 'containsObject:' reference means just that: the object. NOT the key. IOW, in your header file if you've defined: #define kMyKey ...
Explain “claims-based authentication” to a 5-year-old
...care how the authentication occurred because of the trust. The bartender knows nothing about you except your date of birth because that's all the bartender needs to know. Now, the bartender could store information that they think is important to them, like your favorite drink, but the government d...