ManikMaity / 30-Days-JavaScript-Challenge

30 Days JavaScript Challenge

30-Days-JavaScript-Challenge

This is the GitHub Repository for 30 days Javascript learning challenge!.

Current Javascript Learning Process Bar :

Table Of Content

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Days	What Learned?	Checkbox
1	Console.log() Js variables Js Naming Using Js in webpage Data Types In Js	✔️
2	Primitive Data Types Non-Primitive Data Types Arrays Numbers Math Objects Strings Concetenating String Escape Charecter Tamplate Lireral All js string methods Typeof Converting Data Types Done all levels exercises✔	✔️
3	Booleans Truthy Value & value undefined & null Operators (+,-,*,/,%,**) Comparison Operators Logical Operators Increment Operators Ternary Operators Windows Methods Date Object and Methods Completed all exercises Day03✔	✔️
4	Learned about Conditionals Learned if, else else if statements Switch conditions Ternary Operators Error handling using conditions Completed all level exercises✔	✔️
5	Learned about Arrays Different ways to make arrat - Array constructor & using [] .split() Accessing array items by index Modifying array element Methods to manipulate array .fill(value) Merge Arrays by .concat(array) array length indexOf() in array .toString() .join() .slice(sarting index, ending index) push(item to add in last index) .pop(); .shift() .unshift(element to include in first index) .reverse() .sort() array of arrays Done level1 exercises✔	✔️
6	for loop while loop do while loop for of loop break; & continue; Level1 and 2 exercises done✔ Level3 exercise done✔	✔️
7	Declairing a function Function without perameters Function with parameter - one, two, multple, ulimited unlimited perameter with arguments unlimited perameter with rest operator Anonymous Function Arrow Function Arrow Function - without, single, two, more Arrow Function without return statement Function with default peramiter Level 1 exercises ✔ Level 2 exercises ✔ Level 3 exercises ✔	✔️
8	Local Scope Global scope Block scope and function scope Objects - empty, with values Getting values from an object Object Methods and "this" Srtting new key for object Object methods: Object.assign Object.keys Object.values Object.entries hasOwnProperty Level2 exercises✔️ Level3 exercises✔️	✔️
9	Higher Order Function Callback Returning Function Setting time 1. setInterval(callback, duration) 2. setTimeout(callback, duration) Functional Programming 1. forEach 2. map 3. filter 4. reduce 5. find 6. find 7. findIndex 8. some 9. sort i. normal sort ii. number and object sort Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
10	Set Creating a set - 1. Empty set 2. Set from arrays Set is iterable by for of loop Set Methods 1. adding element (.add(item)) 2. deleting element (.delete(item)) 3. cheacking element (.has(item)) 4. clear all elements (.clear()) Union of sets Intersection of sets Difference of sets Map Ceating map 1. empty map () 2. Map from arrays Map methods 1. Add element in map (.set(item1, item2)) 2. Getting element from Map (.get(item)) 3. checking map keys (.has(keyItem)) Map values using for..of loop Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
11	Destructuring Destructuring arrays 1. If we want to skip a value of array for destructuring 2. We can use default values 3. We can use spred operator (...) in destructuring to specify rest of valuse 4. Destructuring during iteration Object destructuring 1. Renaming during destructring 2. We can use default values if key is not found or undefined 3. Destructuring object during iteration Spread or Rest Operator (...) 1. Spread operator to get rest of element 2. spread operator to copy array and merge arrays 3. Spread operator to copy object 4. changing object value while coping 5. Speard operator with unlimited arguments function Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
12	Regular Expressions Pattern & Flags Creating a pattern with RegExp Constructor regexp constructor RegExp object mathods .test, .match, .search, .replace Regexp charecters and meaning Square Bracket [] Escape character() One or more times(+) Period(.)	❌
13	Console Object Methods console.log Substitution CSS in console Warn, Error & table console.time() & console.timeEnd() console.info() console.assert() console.group() console.count() console.clear() Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
14	Error Handling try, catch, finally Catch block peramiter throw Error Types - Reference, Syntax and Type Errors Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
15	Classes Class Syntax Class Instantiation Class Constructor - Syntax, example Default values with constructor Class methods making Properties with initial value gettter - get setter - set Static method Level3 ex done ✔️	✔️
16	JSON Example, Syntax JSON to js Object - parse() Reviver function with JSON.parse() Object to JSON - stringify() Filter with JSON.stringify Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
17	HTML5 Web Storage sessionStorage, localStorage setItem(), getItem(), removeItem(), clear(), key() Usage of local storege HTML5 Web Storage Objects Setting item - localStorage.setItem('key', 'value'); Syntax, Example, JSON store Getting item - localStorage.getItem('key') Clearing the localStorage clear one item, clear all item Level1 ex done ✔️ Level2 ex done ✔️ Level3 ex done ✔️	✔️
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