Category:Ruby
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Category:Ruby
From CodeCodex
Revision as of 15:05, 4 May 2006 by
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Pages in category "Ruby"
The following 141 pages are in this category, out of 141 total.
A
Append a string to a file
Apply proper uppercase and lowercase on a String
B
Base conversion
Binary search
Bogosort
Boyer-Moore Algorithm Examples
Bresenham's line algorithm
Bubble sort
C
Calculate a derivative
Calculate a triangle number
Calculate age
Calculate an integer square root
Calculate digits of e
Calculate digits of pi
Calculate distance between two points on a globe
Calculate the average of a series
Calculate the factorial of a number
Calculate the Fibonacci sequence
Calculate the number of days in a month
Calculate the sum over a container
Case conversion
Check if a file exists
Check if a variable is undefined or null
Checking file existence
Checksum an ISBN
Comment
Compute days between 2 dates
Compute the number of elements in an array
Concatenate two strings
Convert a string to proper case
Convert text to Morse Code
Copy a directory
Copy a file
Count the number of lines in a text file
Count the number of occurrences of a specific character in a string
Create a directory
Create a file
Create a String with a fixed length
Create a temporary file
Creating Charts in Excel
D
Deal with big-endian and little-endian order
Declare an array
Delete a directory
Delete a file
Deserializing an object
Detect a leap year
Detect even/odd number
D cont.
Determine if a file path is a file or a directory
Determine if an hour is between an interval
Determine if two file paths refer to the same file
Determine the size of a file
Determine to day of the week
Download wallpapers from www.skins.be
E
Equals method
Escape HTML Specials
Euclidean algorithm
F
Find a solution to a sudoku puzzle
Find the ASCII or Unicode value of a character
Find the current system time
Find the number of minutes in a HH:MM:SS time string
For loop
Format a date
Format a date for inserting into a MySQL database
G
Generate a random number
Generate a random password or random string
Generate a url slug
Generate Random Numbers Without Repetition
Get a julian date
Get a key from value with an HashMap
Get an absolute file path from a relative file path
Get File Extension
Get or set the modification time of a file or directory
Get the current working directory
Get the parent of a file path
H
Heapsort
Hello world
I
Initialize a Collection
Initialize multidimensional array
Insert a line in a file
Insertion sort
Introsort
Iterate a Collection and remove an item
J
Javascript size optimization
Join a List as a String
K
Knuth-Morris-Pratt Algorithm Examples
L
Levenshtein Distance
List the files or subdirectories in a directory
Load comma seperated values (CSV) from a file into memory
M
Merge (or add) two arrays into one
Merge sort
Message Substitution
Monty Hall problem analysis
Moving a file or directory to another directory
N
N-queens problem
P
Perform simple mathematical operations on two matrices
Print text to the default display
Q
Quicksort
R
Read a file into a byte array
Read text from standard input
Reading text from a file
Regular expressions
Remove blanks from a string
Remove non-letters from a string
Remove non-numbers from a string
Rename a file extension
Rename a file or directory
Replace a "\" by "\\"
Replace or remove all occurrences of a string
Replace \r\n with the (br) tag
Replace/remove character in a String
Reverse a string word by word
Reverse characters in a string
RGB2HEX
Round a number to a specific decimal place
Ruby
S
Save a string to a file
Selection sort
Serializing an object
Shell sort
Shuffle an array
Simply format a date as "YYYYMMDD"
Sort an array of files
Sort files by the extension
Sort in reverse order
Sort on many fields
Split a String to a List
Standard deviation
Strip certain characters from a String
Substitute tokens in a String
Swap two variables
T
Time the execution
Time zone offset
Traverse a Map
Traverse the files and directories under a directory
Trial Factorisation
Trim whitespace (spaces) from a string
Typecasting
U
Use a random access file
V
Validate a date
Validate a number
W
While loop
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