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How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
...icrosoft Visual Basic for Applications" window select "Tools" from the top menu.
Select "References"
Check the box next to "Microsoft VBScript Regular Expressions 5.5" to include in your workbook.
Click "OK"
Step 2: Define your pattern
Basic definitions:
- Range.
E.g. a-z matches an lower c...
What are the main performance differences between varchar and nvarchar SQL Server data types?
... it is far harder to go back and add support for multilingual text/messages, time zones, units of measure and currency, so everyone MUST always code these in their application from day one, ALWAYS (even if it is only on your home page web app)!
– KM.
Ju...
How to trace the path in a Breadth-First Search?
...n.wikipedia.org/wiki/Breadth-first_search first.
Below is a quick implementation, in which I used a list of list to represent the queue of paths.
# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['...
In git how is fetch different than pull and how is merge different than rebase?
...just cant understand this. I been reading a lot on the web and books and something is just not staying in my head. Can someone please give me the dummy version of the following:
...
Which is faster: Stack allocation or Heap allocation
This question may sound fairly elementary, but this is a debate I had with another developer I work with.
23 Answers
...
Good or bad practice? Initializing objects in getter
...
What you have here is a - naive - implementation of "lazy initialization".
Short answer:
Using lazy initialization unconditionally is not a good idea. It has its places but one has to take into consideration the impacts this solution has.
Background and explana...
How should I have explained the difference between an Interface and an Abstract class?
...Suppose you have 3 databases in your application. Then each and every implementation for that database needs to define the above 2 methods:
public class DBMySQL implements LoginAuth{
// Needs to implement both methods
}
public class DBOracle implements LoginAuth{
// Needs to im...
Differences between socket.io and websockets
...id using WebSockets directly unless you are very familiar with what environments they don't work and you are capable of working around those limitations.
This is a good read on both WebSockets and Socket.IO.
http://davidwalsh.name/websocket
...
Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
...
Firefox renders all of the above spaces as the same width, wider than one space in the font, except for nbsp, where it renders as one space and imposes the non-breaking character. A real shame. There are cases where only a character will do, for instance when padding is bei...
How to get different colored lines for different plots in a single figure?
...n different plots (consider using a few subplots on one figure), or
Use something other than color (i.e. marker styles or line thickness) to distinguish between them.
Otherwise, you're going to wind up with a very messy plot! Be nice to who ever is going to read whatever you're doing and don't...