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When to use %r instead of %s in Python? [duplicate]
... Thanks. I was wondering why one might use the %r - but I now understand from your example above.
– Helen Neely
Jan 16 '14 at 15:49
2
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How do I shuffle an array in Swift?
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let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbers = [1, 2, 3, 4]
numbers.shuffle()
// numbers == [3, 2, 1, 4]
Swift 4.0 and 4.1
These extensions add a sh...
Exotic architectures the standards committees care about
...for special handling of denormals in any context other than conversions to/from other types. Too bad C's printf messed everything up.
– supercat
Apr 30 '15 at 16:32
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Proper usage of Optional.ifPresent()
...ingWithUser);
Method ifPresent() get Consumer object as a paremeter and (from JavaDoc): "If a value is present, invoke the specified consumer with the value." Value it is your variable user.
Or if this method doSomethingWithUser is in the User class and it is not static, you can use method refere...
内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...include <unistd.h>
void malloc_init()
{
/* grab the last valid address from the OS */
last_valid_address = sbrk(0);
/* we don't have any memory to manage yet, so
*just set the beginning to be last_valid_address
*/
managed_memory_start = last_valid_address;
/* Okay, we're initialize...
Is there a simple way to remove multiple spaces in a string?
... Yes right. But before that strip() should be done. It will remove spaces from both end.
– Hardik Patel
Dec 29 '16 at 12:46
20
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How to solve javax.net.ssl.SSLHandshakeException Error?
...inventory API to get product list and it works fine. Once I get the result from the web-service and i bind to UI. And also I integrated PayPal with my application for make Express checkout when I make a call for payment I'm facing this error. I use servlet for back-end process. Can any one say how t...
jQuery - hashchange event
... true for 'onhashchange' in window, even though the event isn't supported -from jQuery Mobile
– Vikas
May 19 '11 at 6:16
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How to build a framework or library for other developers, the secure way? [closed]
...helpful for any iOS developer. So we're seriously thinking about switching from app development to framework/library development.
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How to correct TypeError: Unicode-objects must be encoded before hashing?
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It is probably looking for a character encoding from wordlistfile.
wordlistfile = open(wordlist,"r",encoding='utf-8')
Or, if you're working on a line-by-line basis:
line.encode('utf-8')
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