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How do function pointers in C work?
... to imply that we're setting the text of some String class to be "hello".
By using function pointers, it is possible to emulate methods in C.
How is this accomplished?
The String class is actually a struct with a bunch of function pointers which act as a way to simulate methods. The following is ...
Python timedelta in years
... @brianary: it won't be "fully accurate" e.g., the difference introduced by the local timezone (datetime.now()) is greater than the difference between average Julian (365.25) and Gregorian (365.2425) years.. The correct approach is suggested in @Adam Rosenfield's answer
– jfs...
Is there a splice method for strings?
... + (add || "") + str.slice(index + count);
}
than using a split followed by a join (Kumar Harsh's method), like this:
function spliceSplit(str, index, count, add) {
var ar = str.split('');
ar.splice(index, count, add);
return ar.join('');
}
Here's a jsperf that compares the two and a coup...
Best Practice: Access form elements by HTML id or name attribute?
...t problematic way to access your input element is via:
document.getElementById("myform").elements["foo"]
using .elements["foo"] instead of just .foo is preferable because the latter might return a property of the form named "foo" rather than a HTML element!
...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...on is not a commutative monoid and so the cumulated value will be computed by a series of sequential aggregations.
foldLeft does not assume commutativity nor associativity. It's associativity that gives the ability to chop up the collection, and it's commutativity that makes cumulating easy beca...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
..., a new level is created.
Bottom-Left (BL) Algorithm
BL first order items by non-increasing width. BL packs the next item as near to the bottom as it will fit and then as close to the left as it can go without overlapping with any packed item. Note that BL is not a level-oriented packing algorithm....
Biggest GWT Pitfalls? [closed]
...
I'll start by saying that I'm a massive GWT fan, but yes there are many pitfalls, but most if not all we were able to overcome:
Problem: Long compile times, as your project grows so does the amount of time it takes to compile it. I've ...
What are major differences between C# and Java?
...moved.)
Not all of your summary is correct:
In Java methods are virtual by default but you can make them final. (In C# they're sealed by default, but you can make them virtual.)
There are plenty of IDEs for Java, both free (e.g. Eclipse, Netbeans) and commercial (e.g. IntelliJ IDEA)
Beyond that...
Get java.nio.file.Path object from java.io.File
...
Yes, you can get it from the File object by using File.toPath(). Keep in mind that this is only for Java 7+. Java versions 6 and below do not have it.
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impro...
For-each over an array in JavaScript
...quickly note that you can use the ES2015 options now, even on ES5 engines, by transpiling ES2015 to ES5. Search for "ES2015 transpiling" / "ES6 transpiling" for more...
Okay, let's look at our options:
For Actual Arrays
You have three options in ECMAScript 5 ("ES5"), the version most broadly sup...