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GetType() can lie?
...t.
What you did is akin to shadowing GetType, like this:
public class BadFoo
{
public new Type GetType()
{
return typeof(int);
}
}
with this class (and using the sample code from the MSDN for the GetType() method) you could indeed have:
int n1 = 12;
BadFoo foo = new BadFoo()...
What is the difference between syntax and semantics in programming languages?
...he language. It answers the question: how do I construct a valid sentence? All languages, even English and other human (aka "natural") languages have grammars, that is, rules that define whether or not the sentence is properly constructed.
Here are some C language syntax rules:
separate statement...
Explanation of JSONB introduced by PostgreSQL
...
First, hstore is a contrib module, which only allows you to store key => value pairs, where keys and values can only be texts (however values can be sql NULLs too).
Both json & jsonb allows you to store a valid JSON value (defined in its spec).
F.ex. these are v...
Why can't radio buttons be “readonly”?
...the value (or does it?), and it grays out the radio button. Read-only is really what I'm looking for, but for some mysterious reason it doesn't work.
...
Is there a way to @Autowire a bean that requires constructor arguments?
...he case; I don't necessarily have the ability to modify the code. Additionally, in my example, I'm using a String as the argument, but there are cases where the contructor requires other beans as arguments.
– Eric B.
Jul 19 '11 at 14:59
...
How to detect the physical connected state of a network cable/connector?
...ugged in Again:
eth0/carrier:1
eth0/operstate:up
Side Trick: harvesting all properties at once the easy way:
grep "" eth0/*
This forms a nice list of key:value pairs.
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How can I determine the type of an HTML element in JavaScript?
...toLowerCase() means you also need to make sure nodeName exists (if it's at all possible elt is not, in fact, an element): if (elt.nodeName && elt.nodeName.toLowerCase() === 'div') { ... }
– Erik Koopmans
Nov 6 '17 at 7:10
...
Multiple arguments vs. options object
...bject to a function instead of passing a long list of parameters, but it really depends on the exact context.
I use code readability as the litmus test.
For instance, if I have this function call:
checkStringLength(inputStr, 10);
I think that code is quite readable the way it is and passing ind...
How to install node.js as windows service?
... run that executable as windows service?
I cannot use standard node.js installer, since I need to run multiple version of node.js concurrently.
...
How is Python's List Implemented?
...dynamic array. Practical proof: Indexing takes (of course with extremely small differences (0.0013 µsecs!)) the same time regardless of index:
...>python -m timeit --setup="x = [None]*1000" "x[500]"
10000000 loops, best of 3: 0.0579 usec per loop
...>python -m timeit --setup="x = [None]*100...