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How do I change the value of a global variable inside of a function
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This doesn't work for me: country = 'foo' $.ajax({ url: '/some-endpoint', success: function(data) { country = data.country; } }); console.log(country) // outputs 'foo'
– Mark Simpson
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Creating an instance using the class name and calling constructor
... to use a dollar (as that's what the compiler uses). For example:
package foo;
public class Outer
{
public static class Nested {}
}
To obtain the Class object for that, you'd need Class.forName("foo.Outer$Nested").
s...
Protected methods in Objective-C
...rClassProtectedMethods <NSObject>
- (void) protectMethod:(NSObject *)foo;
@end
@interface SuperClass (ProtectedMethods) < SuperClassProtectedMethods >
@end
SuperClass.m: (compiler will now force you to add protected methods)
#import "SuperClassProtectedMethods.h"
@implementation Supe...
Logical Operators, || or OR?
...
and $e = true || $x = 'foo' will not define $x because of short-circuiting, not because of higher precedence.
– Matt Kieran
Jul 31 '14 at 1:18
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Breaking out of nested loops [duplicate]
... return statement can be used to exit the outermost loop at any time.
def foo():
for x in range(10):
for y in range(10):
print(x*y)
if x*y > 50:
return
foo()
If it's hard to extract that function you could use an inner function, as @bjd2385 s...
How to check whether a string contains a substring in Ruby
...returns the index of the character where the match happens. For example:
"foobar" =~ /bar/ # returns 3
"foobar" =~ /foo/ # returns 0
"foobar" =~ /zzz/ # returns nil
It's important to note that in Ruby only nil and the boolean expression false evaluate to false. Everything else, including an em...
Valid to use (anchor tag) without href attribute?
.... Originally the HTML specification allowed for named anchors (<a name="foo">) and linked anchors (<a href="#foo">).
The named anchor format is less commonly used, as the fragment identifier is now used to specify an [id] attribute (although for backwards compatibility you can still spe...
How to get relative path from absolute path
...ow an exception if the file or path doesn't exist since this could be a totally legal case.
– VVS
Jun 2 '09 at 12:01
2
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What does the “Just” syntax mean in Haskell?
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It's actually just a normal data constructor that happens to be defined in the Prelude, which is the standard library that is imported automatically into every module.
What Maybe is, Structurally
The definition looks something like ...
How to get the unix timestamp in C#
...cNow.ToUnixTimeSeconds()
To get the timestamp from a DateTime:
DateTime foo = DateTime.UtcNow;
long unixTime = ((DateTimeOffset)foo).ToUnixTimeSeconds();
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