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Why are exclamation marks used in Ruby methods?
...e that someone else might have a reference to. Here's a simple example for strings:
foo = "A STRING" # a string called foo
foo.downcase! # modifies foo itself
puts foo # prints modified foo
This will output:
a string
In the standard libraries, there are a lot of places you'll see...
Is it possible to override JavaScript's toString() function to provide meaningful output for debuggi
...
You can override toString in Javascript as well. See example:
function Foo() {}
// toString override added to prototype of Foo class
Foo.prototype.toString = function() {
return "[object Foo]";
}
var f = new Foo();
console.log("" + f); ...
How to apply a CSS filter to a background image
... A slightly better way to do this is to use .content:before instead of the extra "background-image" markup. I updated the pen here : codepen.io/akademy/pen/FlkzB
– Matthew Wilcoxson
Jan 27 '14 at 20:10
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How does Spring Data JPA differ from Hibernate for large projects?
...teger>, MyObjectRepositoryCustom {
List<MyObject> findByName(String name);
@Query("select * from my_object where name = ?0 or middle_name = ?0")
List<MyObject> findByFirstNameOrMiddleName(String name);
}
MyObjectRepositoryCustom - repository methods that are more compl...
Convert a string representation of a hex dump to a byte array using Java?
I am looking for a way to convert a long string (from a dump), that represents hex values into a byte array.
24 Answers
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Check for array not empty: any?
...
This is a question about arrays, not strings.
– Chiara Ani
Aug 28 at 15:08
add a comment
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Convert String to Calendar Object in Java
... DateTimeFormatter.ofPattern( "E MMM d HH:mm:ss z uuuu" )
)
).toString()
2011-03
Avoid legacy date-time classes
The modern way is with java.time classes. The old date-time classes such as Calendar have proven to be poorly-designed, confusing, and troublesome.
Define a custom form...
Auto increment in phpmyadmin
...r table
Click on the pencil of the variable you want auto_increment
under "Extra" tab choose "auto_increment"
then go to "Operations" tab of your table
Under "Table options" -> auto_increment type -> 10000
share
...
Static Indexers?
...tionManager;
}
public class ConfigurationManager
{
public object this[string value]
{
get => new object();
set => // set something
}
}
Now you can call Utilities.ConfigurationManager["someKey"] using indexer notation.
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Set default CRAN mirror permanent in R
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I added extra information, as it wasn't worth an extra answer and a bit too much for a comment.
– Joris Meys
Dec 12 '11 at 15:04
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