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Modular multiplicative inverse function in Python
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I was having problems with negative numbers using this algorithm. modinv(-3, 11) didn't work. I fixed it by replacing egcd with the implementation on page two of this pdf: anh.cs.luc.edu/331/notes/xgcd.pdf Hope that helps!
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Get the value of an instance variable given its name
...However, if you find yourself reaching into another object and pulling out its ivar, there's a reasonably good chance that you have broken encapsulation.
If you explicitly want to access an ivar, the right thing to do is to make it an accessor. Consider the following:
class Computer
def new(cpus...
Generate random password string with requirements in javascript
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Forcing a fixed number of characters is a bad idea. It doesn't improve the quality of the password. Worse, it reduces the number of possible passwords, so that hacking by bruteforcing becomes easier.
To generate a random word consisting of alphanumeric characters, use:
var r...
SQL- Ignore case while searching for a string
...PriceOrderShippedInbound
PriceOrderShippedOutbound
In SQL I need to write a query which searches for a string in a table. While searching for a string it should ignore case. For the below mentioned SQL query
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How do I find all files containing specific text on Linux?
...ntaining a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
50 Answers...
Check image width and height before upload with Javascript
I have a JPS with a form in which a user can put an image:
8 Answers
8
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Why should text files end with a newline?
I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why?
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How to import CSV file data into a PostgreSQL table?
How can I write a stored procedure that imports data from a CSV file and populates the table?
18 Answers
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Call PowerShell script PS1 from another PS1 script inside Powershell ISE
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In order to find the location of a script, use Split-Path $MyInvocation.MyCommand.Path (make sure you use this in the script context).
The reason you should use that and not anything else can be illustrated with this example script.
## ScriptTest.ps1
Write-Host "Invocation...
How do I convert from int to String?
...nteger.toString(i) or String.valueOf(i).
The concatenation will work, but it is unconventional and could be a bad smell as it suggests the author doesn't know about the two methods above (what else might they not know?).
Java has special support for the + operator when used with strings (see the d...