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What are fail-safe & fail-fast Iterators in Java
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What is the difference between them ...
"Fail-safe" (in engineering) means that something fails in a way that causes no or minimal damage. Strictly speaking, there is no such thing in Java as a fail-safe iterator. If an iterator fails...
How to use the PI constant in C++
...acro
* definitions for common math constants. These are placed under an #ifdef
* since these commonly-defined names are not part of the C/C++ standards.
*/
However:
on newer platforms (at least on my 64 bit Ubuntu 14.04) I do not need to define the _USE_MATH_DEFINES
On (recent) Linux platfo...
Prevent users from submitting a form by hitting Enter
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$(document).ready(function() {
$(window).keydown(function(event){
if(event.keyCode == 13) {
event.preventDefault();
return false;
}
});
});
In reading the comments on the original post, to make it more usable and allow people to press Enter if they have completed all the...
Get controller and action name from within controller?
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If you're going to do this (provide the action and controller name), why not just assign them directly???
– MetalPhoenix
Apr 3 '15 at 19:16
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Django gives Bad Request (400) when DEBUG = False
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The ALLOWED_HOSTS list should contain fully qualified host names, not urls. Leave out the port and the protocol. If you are using 127.0.0.1, I would add localhost to the list too:
ALLOWED_HOSTS = ['127.0.0.1', 'localhost']
You could also use * to match any host:
ALLOWE...
What does int argc, char *argv[] mean?
...argv (argument vector) by convention, but they can be given any valid identifier: int main(int num_args, char** arg_strings) is equally valid.
They can also be omitted entirely, yielding int main(), if you do not intend to process command line arguments.
Try the following program:
#include <io...
Rearrange columns using cut
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Note to Windows users of Git Bash: if you have weird output from the command above, looking like columns overriding each other, the carriage return is to blame. Change EOL in your file from CRLF to LF.
– jakub.g
Apr 9 '15...
How to redirect and append both stdout and stderr to a file with Bash?
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@TheBonsai however what if I need to redirect STDERR to another file but appending? is this possible?
– arod
Jun 2 '13 at 22:26
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Show a number to two decimal places
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if you want to limit only float but not int then bcdiv($number,1,2)
– Wasim A.
Feb 26 '16 at 11:53
3
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Convert Elixir string to integer or float
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Note that this will return a tuple (if successful) and not the integer directly. If you want to do that, see @Szymon Jeż answer with String.to_integer/1
– user4275029
Sep 26 '16 at 12:27
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