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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...itional dependencies and use SecureRandom which is builtin:
SecureRandom.uuid #=> "1ca71cd6-08c4-4855-9381-2f41aeffe59c"
See other possible formats here.
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Difference between CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_LIST_DIR
...RENT_LIST_DIR changes with every file you include(); it doesn't have to be called CMakeLists.txt.
– Angew is no longer proud of SO
Mar 28 '13 at 7:26
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What is the `zero` value for time.Time in Go?
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"Passing no arguments" makes it sound like a function call. It's a struct literal with no fields specified. X{} is the zero value of the struct X for any X.
– Russ Cox
Apr 16 '14 at 2:00
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
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As per @IberoMedia's comment, for newer versions of MySQL, the field is called authentication_string:
mysql> UPDATE mysql.user SET authentication_string =PASSWORD('password') WHERE User='root';
Start MySQL using:
sudo service mysql start
or
sudo /usr/local/mysql/support-files/mysql.serv...
Avoiding an ambiguous match exception
... you're looking for? Browse other questions tagged c# reflection ambiguous-call or ask your own question.
How to loop through all the files in a directory in c # .net?
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It's called searchPattern and it's a filter by which files are selected. In this case it will select all files ending in "ProfileHandler.cs". Have a look at MDSN
– Migwell
Oct 13 '16 at 23:10...
Java optional parameters
...lt;Integer>absent());
Optional makes a method contract explicit for a caller, however, one may find such signature too verbose.
Update: Java 8 includes the class java.util.Optional out-of-the-box, so there is no need to use guava for this particular reason in Java 8. The method name is a bit d...
How do you set the text in an NSTextField?
...don't need to convert the integer value to a string manually; you can just call:
myLabel.integerValue = i;
The integerValue property is defined on NSTextField's parent class, NSControl. See that linked documentation page for a full list of methods it supports.
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How to turn on line numbers in IDLE?
...nt window, go to Options and click Show Line Numbers.
To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box.
Version 3.7 or older:
Unfortunately there is not an option to display line numbers in IDLE although there is an enhance...
How to make a DIV visible and invisible with JavaScript
...t then
[DIV].style.visibility='visible'
OR
[DIV].style.visibility='hidden'
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