Programing Exercise: Test Your Programing Language Proficiency

Here's list of programing exercises to test your language fluency. You should be able to answer the following questions, in code, real-time. If you know them by heart, you have a basic proficiency with the language. (this list is primarily for dynamic languages, such as {Perl, Python, Ruby, JavaScript, PHP, Lisp})

Things you should be able to do without looking up:

• print version number within a script
• list available modules
• list module search path
• list module imported symbols
• from terminal, display module doc
• from terminal, display doc of python lang keywords: while, for, list, dict….

• List all string methods, list/array methods, hash/dictionary methods. Or, functions.
• extract substring by index.
• find the floor diversion of 2 floats. Find remainder of them.
• find square root, 3rd root.
• convert int ↔ float, int ↔ string, float ↔ string. (if the lang does not do. If it does, specify which types are auto-converted)
• print without newline
• list all possible values that evaluate to true, in boolean context. (give a general description)
• write if then else, while, loop, also use break.
• solve http://en.wikipedia.org/wiki/Levenshtein_distance

• list operations: length, access/change/delete/insert a element by index.
• list operations: access/delete/insert a sublist from index i to j. Replace sublist from index i to j. join 2 lists. Append/prepend a list.
• list operations: check if element exist, find indexes by value, count number of occurrence, delete elements by value, find min/max item.
• list operations: push, pop, pop ith, shift, unshift,
• hash operations: get length, access/add/modify/delete a entry by key, check if key exist.
• hash operations: get all keys, get all values.

• define function with named params, optional params, infinite params

• loop thru list values. loop thru list with index and values.
• loop thru dictionary, with key and value.

• master python regex.
• finish a tutorial on string methods

• how to find interpreter path from runing script
• how to find runing script's path
• how to find a module's path
• sort a list
• sort a matrix by 2nd column (list of lists)

Object Oriented Programing

• write a class.
• write a initializer or constructor
• create class variable (aka static variable)
• create instance variable
• define a method
• create a object

• extend a class.
• given 2 class A and B, find if A is the child of B.
• check if a object O is a instance of class C.
• check if 2 objects are identical