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“Invalid JSON primitive” in Ajax processing
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Just a guess what does the variable json contain after
var json = Sys.Serialization.JavaScriptSerializer.serialize(obj);?
If it is a valid json object like {'foo':'foovalue', 'bar':'barvalue'} then jQuery might not send it as json data but instead serialize it to foor=foovalue&bar=bar...
Is there a way to perform “if” in python's lambda
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Probably the worst python line I've written so far:
f = lambda x: sys.stdout.write(["2\n",][2*(x==2)-2])
If x == 2 you print,
if x != 2 you raise.
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Loading basic HTML in Node.js
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sys = require('util') is not needed since nothing is printed to the console.
– Bakudan
Dec 9 '11 at 6:33
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How can you do anything useful without mutable state?
...y to create and manipulate lists. Nearly all data structures can be easily converted into their functional equivalents. I wrote a page here which provides immutable implementations of stacks, queues, leftist heaps, red-black trees, lazy lists. Not a single snippet of code contains any mutable state....
What is a Python egg?
...pplication to
easily and efficiently find out what eggs are present on a system, and
to ensure that the desired eggs' contents are importable.
The .egg format is well-suited to distribution and the easy
uninstallation or upgrades of code, since the project is essentially
self-contained ...
Difference between 'struct' and 'typedef struct' in C++?
... class foo with a default constructor,
and a conversion operator that
converts a foo object to char const *.
The expression
p = foo();
in main should construct a foo object
and apply the conversion operator. The
subsequent output statement
cout << p << '\n';
shou...
Splitting templated C++ classes into .hpp/.cpp files--is it possible?
...argument of the class method is the 'this' operator. All class methods are converted into individual methods with name mangling and the first parameter as the object which it operates on. The 'this' argument is which actually tells about size of the object which incase of template class is unavailab...
Why does Stream not implement Iterable?
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To convert a Stream to an Iterable, you can do
Stream<X> stream = null;
Iterable<X> iterable = stream::iterator
To pass a Stream to a method that expects Iterable,
void foo(Iterable<X> iterable)
simply
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urlencode vs rawurlencode?
...oes things the old school way, where + meant "space."
If you're trying to convert between the old format and new formats, be sure that your code doesn't goof up and turn something that's a decoded + sign into a space by accidentally double-encoding, or similar "oops" scenarios around this space/20%...
Double not (!!) operator in PHP
...It means if $row has a truthy value, it will return true, otherwise false, converting to a boolean value.
Here is example expressions to boolean conversion from php docs.
Expression Boolean
$x = ""; FALSE
$x = null; FALSE
var $x; FALSE
$x is und...