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Welcome to Wikifunctions

Wikifunctions is a free library of functions that anyone can edit.

Welcome!

Wikifunctions is a Wikimedia project for everyone to collaboratively create and maintain a library of code functions to support the Wikimedia projects and beyond, in the world's natural and programming languages.

A "function" is a sequence of programming instructions that makes a calculation based on data you provide. Functions can answer questions, such as how many days have passed between two dates, or the distance between two cities.

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Wikifunctions in 7 minutes

Functions to try out

is a palindrome (Z10096): test if a string is the same when read forward and backward (see Z10553 for one with Unicode grapheme support)
get day of week from date (Z13163): returns the day of week when given a date as year, month and day of the month
is prime (Z12427): Checks if the provided natural number is prime or not.
English cardinal (Z13587): expresses a natural number in English words
is pangram (Latin alphabet) (Z12626): checks whether a string of characters possesses every letter from the Latin alphabet at least once
Caesar cipher (Latin alphabet) (Z12812): rotates letters in the Latin alphabet forward by a defined number of places
reverse string (Z10012): Inverts the order of the characters in a String (see Z10548 for one with Unicode grapheme support)
has substring (Z10070): Check if a substring exists within another string