0x13-javascript_objects_scopes_closures

0x13. JavaScript - Objects, Scopes and Closures

0-rectangle.js

Write an empty class Rectangle that defines a rectangle:

• You must use the class notation for defining your class

1-rectangle.js

Write a class Rectangle that defines a rectangle:

• You must use the class notation for defining your class
• The constructor must take 2 arguments w and h
• Initialize the instance attribute width with the value of w
• Initialize the instance attribute height with the value of h

2-rectangle.js

Write a class Rectangle that defines a rectangle:

• You must use the class notation for defining your class
• The constructor must take 2 arguments w and h
• Initialize the instance attribute width with the value of w
• Initialize the instance attribute height with the value of h
• If w or h is equal to 0 or not a positive integer, create an empty object

3-rectangle.js

Write a class Rectangle that defines a rectangle:

• You must use the class notation for defining your class
• The constructor must take 2 arguments w and h
• Initialize the instance attribute width with the value of w
• Initialize the instance attribute height with the value of h
• If w or h is equal to 0 or not a positive integer, create an empty object
• Create an instance method called print() that prints the rectangle using the character X

4-rectangle.js

Write a class Rectangle that defines a rectangle:

• You must use the class notation for defining your class
• The constructor must take 2 arguments w and h
• Initialize the instance attribute width with the value of w
• Initialize the instance attribute height with the value of h
• If w or h is equal to 0 or not a positive integer, create an empty object
• Create an instance method called print() that prints the rectangle using the character X
• Create an instance method called rotate() that exchanges the width and the height of the rectangle
• Create an instance method called double() that multiples the width and the height of the rectangle by 2

5-square.js

Write a class Square that defines a square and inherits from Rectangle of 4-rectangle.js:

• You must use the class notation for defining your class and extends
• The constructor must take 1 argument: size
• The constructor of Rectangle must be called (by using super())

6-square.js

Write a class Square that defines a square and inherits from Rectangle of 4-rectangle.js:

• You must use the class notation for defining your class and extends
• Create an instance method called charPrint(c) that prints the rectangle using the character c
  • If c is undefined, use the character X

7-occurrences.js

Write a function that returns the number of occurrences in a list:

• Prototype: exports.nbOccurences = function (list, searchElement)

8-esrever.js

Write a function that returns the reversed version of a list:

• Prototype: exports.esrever = function (list)
• You are not allow to use the built-in method reverse

9-logme.js

Write a function that prints the number of arguments already printed and the new argument value.

• Prototype: exports.logMe = function (item)
• Output format: <number arguments already printed>: <current argument value>

10-converter.js

Write a function that converts a number from base 10 to another base passed as argument:

• Prototype: exports.converter = function (base)
• You are not allowed to import any file
• You are not allowed to declare any new variable (var, let, etc..)

100-map.js

Write a script that imports an array and computes a new array.

• Your script must import list from the file 100-data.js
• You must use a map.
• A new list must be created with each value equal to the value of the initial list, multipled by the index in the list
• Print both the initial list and the new list

101-sorted.js

Write a script that imports a dictionary of occurrences by user id and computes a dictionary of user ids by occurrence.

• Your script must import dict from the file 101-data.js
• In the new dictionary:
  • A key is a number of occurrences
  • A value is the list of user ids
• Print the new dictionary at the end

102-concat.js

Write a script that concats 2 files.

• The first argument is the file path of the first source file
• The second argument is the file path of the second source file
• The third argument is the file path of the destination