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In Typescript, How to check if a string is Numeric
...y to convert a string to a number is with Number, not parseFloat.
Number('1234') // 1234
Number('9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected wi...
Is it possible to have a multi-line comments in R? [duplicate]
...k another time ` # if(FALSE){ ` and ` # } `
– Gabriel123
Sep 6 '17 at 11:20
add a comment
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How to call Base Class's __init__ method from the child class? [duplicate]
...
123
You could use super(ChildClass, self).__init__()
class BaseClass(object):
def __init__(se...
How do I delete all messages from a single queue using the CLI?
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123
rabbitmqadmin is the perfect tool for this
rabbitmqadmin purge queue name=name_of_the_queue_t...
The source was not found, but some or all event logs could not be searched
...edited Feb 2 '15 at 16:07
Rizier123
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answered Feb 2 '15 at 15:47
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Big O, how do you calculate/approximate it?
...sertion sort
O(n3) - Multiplying two n×n matrices by simple algorithm
O(cn) - Finding the (exact) solution to the traveling salesman problem using dynamic programming; determining if two logical statements are equivalent using brute force
O(n!) - Solving the traveling salesman problem via brute-...
Is there a Subversion command to reset the working copy?
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vcsjonesvcsjones
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How do you scroll up/down on the Linux console?
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123
Shift+Fn+ UP or DOWN on a Macbook will allow you to scroll.
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Fastest Way to Serve a File Using PHP
...che config or .htaccess if you allow it)
XSendFile on
XSendFilePath /home/www/example.com/htdocs/files/
With this module the file path could either be absolute or relative to the specified XSendFilePath.
Lighttpd
The mod_fastcgi support this when configured with
"allow-x-send-file" => "ena...
Is it possible to specify condition in Count()?
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AdaTheDevAdaTheDev
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