questions solved

Author: INDRESH-009

README.md

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+This is my complete patha nd roadmap with the code i have practised to master javascript.
+This documentation of my journey will be the proof of my work and improvement 
+
+progression and topics learned 
+1.  What are value 
+2.  What is a variable 
+3.  what are datatypes
+4.  what are 7 primitive datatypes
+5.  3 ways to Declare a variable in js - let,const,var
+6.  console.log function
+7.  Type of operator 
+8.  Whats Dynamic typing & its action
+9.  Comments in JS
+10. What are statements and expressions in js 
+11. What is a operator and a operand  -> operator precendence
+12. Concatenation of string by + operator & template literals
+13. Multiline strings before ES6 and after ES6 
+14. Conditional if-else statement
+15. Type conversion and type coercion in numbers , strings and boolean
+16. Equality operators (== vs ===)
+17. Inequality operators (!= vs !==)
+18. Switch statements in JS
+19. Conditional / terenary operator
+20. Loops in js - for,while loops
+21. How to embed loops & use loops to solve pattern questions
+22. What is an array datastructure
+23. Looping through an array 
+24. What are objects
+25. creating complex objects - array of objects and object of arrays
+26. accessing the elements in an complex object using . (dot) and [""] (bracket) notations
+27. What are function and its anatomy
+28. Function declaration, function expression and arrow functions 
+29. Function calling other functions
+30. Callback functions and how callbacks work
+31. Anonymous function
+32. Builtin-functions in string -> 
+     String: length, indexOf(), lastIndexOf(), slice(), substring(), replace(),split(), trim(), toUpperCase(), toLowerCase(), etc.
+33. Builtin-functions in string -> parseInt and parseFloat
+34. Builtin-functions in arrays ->  
+    Array:   push(), pop(), shift(), unshift(), splice(), slice(),concat(), forEach(), map(), filter(), reduce(), find(), sort()
+35. What are classes and how to declare them
+36.