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How can I check if a string represents an int, without using try/except?
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If you're really just annoyed at using try/excepts all over the place, please just write a helper function:
def RepresentsInt(s):
try:
int(s)
return True
except ValueError:
return False
>>> pri...
How to get random value out of an array?
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Since PHP 7.1, array_rand() uses the Mersenne Twister generator: rand() aliased to mt_rand() and srand() aliased to mt_srand(). In practice it should now be good enough.
– Gras Double
Jun 29 '...
Navigation in django
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I like this idea a lot, especially for flexibility, but it comes with the less-DRY trade-off. I did start using this in a site though.
– anonymous coward
Sep 22 '09 at 14:47
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
Does C++ support ' finally ' blocks?
16 Answers
16
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Troubleshooting “The use statement with non-compound name … has no effect”
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PHP's use isn't the same as C++'s using namespace; it allows you to define an alias, not to "import" a namespace and thus henceforth omit the namespace qualifier altogether.
So, you could do:
use Blog\Article as BA;
... to shorten it, but you cannot get rid of it entirely.
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How to cancel/abort jQuery AJAX request?
...ct
return $def.promise();
}
// initiate first call
singleAjax('/ajax.php', {a: 1, b: 2})
.always(function(a,b,c) {console && console.log(a,b,c);});
// second call kills first one
singleAjax('/ajax.php', {a: 1, b: 2})
.always(function(a,b,c) {console && console.log(a,b,...
Go > operators
... 2, 5 times" or 32. And 32 >> 5 is "32 divided by 2, 5 times" or 1.
All the other answers give the more technical definition, but nobody laid it out really bluntly and I thought you might want that.
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git update-index --assume-unchanged returns “fatal unable to mark file”
...nd downloaded the latest version of git, but this did not help.
What I finally realized is that this command is case sensitive! This includes the full path and file name. After updating path to the directory so that the full path was specified with proper casing, the command executed properly.
N...
PHP reindex array? [duplicate]
...lues does the job :
$myArray = array_values($myArray);
Also some other php function do not preserve the keys, i.e. reset the index.
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php中三个等于号是什么意思？=== - 更多技术 - 清泛网 - 专注C/C++及内核技术
php中三个等于号是什么意思？===1、=：赋值，在逻辑运算时也有效；2、==：等于运算，但是不比较值的类型；3、===：完全等于运算，不仅比较值，而且还比较值的类型，只有两...1、=：赋值，在逻辑运算时也有效；
2、==：等于...