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Why is quicksort better than mergesort?
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QuickSort is more popular because it:
Is in-place (MergeSort requires extra memory linear to number of elements to be sorted).
Has a small hidden constant.
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Send POST data using XMLHttpRequest
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Is it possible to send an object in params instead of a string like in jQuery?
– Vadorequest
Sep 7 '14 at 11:27
4
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What issues should be considered when overriding equals and hashCode in Java?
...pache Commons Lang library. An example:
public class Person {
private String name;
private int age;
// ...
@Override
public int hashCode() {
return new HashCodeBuilder(17, 31). // two randomly chosen prime numbers
// if deriving: appendSuper(super.hashCode()...
Why should I avoid std::enable_if in function signatures
...lity: constructors don't have return types, and some operators cannot have extra arguments, so neither of the other two options can be applied everywhere. Putting enable_if in a template parameter works everywhere since you can only use SFINAE on templates anyway.
For me, the readability aspect is...
Absolute positioning ignoring padding of parent
...in that both elements can have their own independent padding) are:
Add an extra relatively positioned div (with no padding) around the absolutely positioned div. That new div will respect the padding of its parent, and the absolutely positioned div will then fill it.
The downside, of course, is tha...
List directory tree structure in python?
...ct print a visual tree structure"""
dir_path = Path(dir_path) # accept string coerceable to Path
files = 0
directories = 0
def inner(dir_path: Path, prefix: str='', level=-1):
nonlocal files, directories
if not level:
return # 0, stop iterating
if...
The server principal is not able to access the database under the current security context in SQL Se
...figured out I just had a stupid typo in the Database Name in my connection string connecting to Azure SQL Database. If your Database Name is correct, you don't need access to Master. If it's wrong, then (in my case) I think Entity Framework (6.1.3) is trying to be extra smart by connecting to Master...
Setting DIV width and height in JavaScript
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The onclick attribute of a button takes a string of JavaScript, not an href like you provided. Just remove the "javascript:" part.
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What is the reason not to use select *?
...ng all the columns now, it doesn't mean someone else isn't going to add an extra column to the table.
It also adds overhead to the plan execution caching since it has to fetch the meta data about the table to know what columns are in *.
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What are the differences in die() and exit() in PHP?
... have two exit functions now! Let's make it so that they both
can take a string or integer as an argument and make them identical!"
The end result is that this didn't really make things any "easier",
just more confusing. C and Perl coders will continue to use exit() to
toss an integer exi...