javascript roadmap codewars

JavaScript Roadmap Codewars challenge

... In progress

https://roadmap.sh/javascript

JavaScript basics

Rank	Kata
8 kyu	Basic variable assignment
8 kyu	Basic data types --String
8 kyu	Basic data types --Number
8 kyu	Basic data types --Array
8 kyu	Basic data types --Object
8 kyu	Basic data types --Boolean and conditional statements if..else
8 kyu	if..else and ternary operator
8 kyu	Conditional statement --switch
8 kyu	Loop statement --while and do..while
8 kyu	Loop statement --for
8 kyu	Loop statement --break,continue
8 kyu	Loop statement --for..in and for..of
8 kyu	Unlock new skills --Arrow function,spread operator and deconstruction

Hoisting

Rank	Kata
7kyu	Hoisting

... Hoisting, JavaScript Scope, Block, Function, Global

Primitive data types and Objects

String primitive and String Object

Rank	Kata
8 kyu	Methods of String object --slice(), substring() and substr()
8 kyu	Methods of String object --indexOf(), lastIndexOf() and search()
8 kyu	Methods of String object --concat() split() and its good friend join()
8 kyu	Methods of String object --toUpperCase() toLowerCase() and replace()
8 kyu	Methods of String object --charAt() charCodeAt() and fromCharCode()
8 kyu	Methods of String object --trim() and the string template
8 kyu	Short Long Short

Number primitive and Number Object

Rank	Kata
8 kyu	Number object and its properties
8 kyu	Methods of Number object--toString() and toLocaleString()
8 kyu	Methods of Number object--toFixed(), toExponential() and toPrecision()
8 kyu	Parse nice int from char problem
8 kyu	Opposite number
8 kyu	Convert a Number to a String!
8 kyu	Convert number to reversed array of digits
8 kyu	Sum without highest and lowest number
7 kyu	Sum of Numbers
7 kyu	Sum of odd numbers
6 kyu	Create Phone Number
6 kyu	Find the unique number
5 kyu	Product of consecutive Fib numbers
5 kyu	Last digit of a large number
4 kyu	Sum Strings as Numbers
4 kyu	Adding Big Numbers

... bigint, boolean, null and undefined, Symbol

The Math namespace object

Rank	Kata
8 kyu	methods of Math ---round() ceil() and floor()
8 kyu	methods of Math ---max() min() and abs()
8 kyu	methods of Math ---pow() sqrt() and cbrt()
8 kyu	methods of Math ---log() and its family
8 kyu	methods of Math ---kata author's lover:random()

Array Object

Rank	Kata
8 kyu	methods of arrayObject ---push(), pop(), shift() and unshift()
8 kyu	methods of arrayObject ---splice() and slice()
8 kyu	methods of arrayObject ---reverse() and sort()
8 kyu	methods of arrayObject ---map()
8 kyu	methods of arrayObject ---filter()
8 kyu	methods of arrayObject ---every() and some()
8 kyu	methods of arrayObject ---concat() and join()
8 kyu	methods of arrayObject ---reduce() and reduceRight()
8 kyu	methods of arrayObject ---isArray() indexOf() and toString()
8 kyu	Convert a string to an array
8 kyu	Sum Arrays
8 kyu	Be Concise IV - Index of an element in an array
8 kyu	Merge two sorted arrays into one
8 kyu	Get the mean of an array
8 kyu	Sum Mixed Array
8 kyu	Find the smallest integer in the array
8 kyu	Array plus array
8 kyu	Sum of differences in array
8 kyu	Convert number to reversed array of digits
7 kyu	Flatten and sort an array
7 kyu	Sort array by string length
6 kyu	Highest Rank Number in an Array
3 kyu	The soul of wit: reverse an array

Functions

Rank	Kata
8 kyu	Opposite number
8 kyu	Implement Array.prototype.filter()
8 kyu	Basic Mathematical Operations
7 kyu	Array.prototype.reverse()
7 kyu	Array.prototype.size()
7 kyu	Unpacking Arguments
7 kyu	Sum of all arguments
7 kyu	Lazily executing a function
7 kyu	Functional Addition
7 kyu	First-Class Function Factory
6 kyu	Range function
5 kyu	Function.prototype.clone
5 kyu	Array.prototype.splice(from, count, insertItems...)

Higher-Order Functions

Rank	Kata
7 kyu	Count the number of JavaScript developers
7 kyu	Greet developers
7 kyu	Is Ruby coming?
7 kyu	Find the first Python developer
7 kyu	Prepare the count of languages
6 kyu	Find the most senior developer
6 kyu	Detect Pangram
6 kyu	Backspaces in string

Callback Functions

Rank	Kata
5 kyu	Calculating with Functions
5 kyu	Wrapped Function
5 kyu	Concatenating functions
5 kyu	Compose functions
5 kyu	Function Cache
5 kyu	A Chain adding function

Classes

Rank	Kata
8 kyu	Classy Classes
8 kyu	Fun with ES6 Classes #1 - People, people, people
7 kyu	Fun with ES6 Classes #2 - Animals and Inheritance
7 kyu	Fun with ES6 Classes #3 - Cuboids, Cubes and Getters
7 kyu	Fun with ES6 Classes #4 - Cubes and Setters
8 kyu	SpeedCode #3 × Fun with ES6 Classes #5 - Dogs and Classes
7 kyu	Super Class Extensions
6 kyu	Fun with ES6 Classes #6 - Fake Files (Basic)
6 kyu	Hex class
6 kyu	Defining getters and setters on an existing class
5 kyu	Vector class
4 kyu	A simple Tic-tac-toe class
2 kyu	class List

Design Patterns

Rank	Kata
7 kyu	First-Class Function Factory
7 kyu	Singleton Pattern
7 kyu	PatternCraft - Visitor
7 kyu	PatternCraft - Adapter
7 kyu	Pure Functions
6 kyu	Function Composition
6 kyu	PatternCraft - State
6 kyu	PatternCraft - Strategy
5 kyu	Function Cache
5 kyu	Memoized Fibonacci
5 kyu	Simple Events
5 kyu	Decorator Pattern
4 kyu	Dependency Injection
4 kyu	Advanced Events

Regular Expression

Rank	Kata
8 kyu	Unlock new weapon ---RegExp Object
8 kyu	Regular Expression --"^","$", "." and test()
8 kyu	Regular Expression --"?", "*", "+" and "{}"
8 kyu	Regular Expression --"|", "[]" and "()"
8 kyu	Regular Expression --""
8 kyu	Regular Expression --(?:), (?=) and (?!)