smart-brains

About the folder:

07_Nov:

Patterns:

1. Diamond Pattern

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2. Hollow Diamond Pattern

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3. Hourglass Pattern

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4. Hollow Square Pattern

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5. Pyramid Pattern

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6. Hollow Pyramid Pattern

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7. Inverted Pyramid Pattern

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8. Right Triangle Pattern

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9. Hollow Right Triangle Pattern

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10. Left Triangle Pattern

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11. Hollow Left Triangle Pattern

For n = 5:

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08_Nov:

calculator based on JS DOM

DOm Manipulation topics and questions.

Questions:

1. Greeting Program: Write a program that takes a user's firstName and lastName as input and displays a greeting message in the format: "Hello [firstName] [lastName]!".

2. Even or Odd Checker: Create a program that prompts the user to input a number and checks whether the number is even or odd. The output should clearly state if the number is even or odd.

3. Find the Largest Number: Write a program that accepts three numbers as input and determines which one is the largest. Display the largest number with a message.

4. Reverse a String: Create a program that takes a string as input and returns the reverse of that string. For example, if the input is "JavaScript", the output should be "tpircSavaJ".

5. Array Sum Calculator: Write a program that takes an array of numbers and calculates the sum of all its elements. Display the total sum as output.

6. DOM Manipulation - Button Click: Add a button to an HTML page, and write JavaScript code that changes the background color of the page to blue when the button is clicked.

7. Prime Number Checker: Create a function that checks whether a given number is a prime number or not. If the number is prime, the program should return a message saying so; otherwise, it should indicate that the number is not prime.

8. Factorial Calculator: Write a program that calculates the factorial of a given number. For instance, if the input is 5, the program should output 120.

9. Vowel Counter: Write a program that takes a string as input and counts the total number of vowels in it. Display the vowel count along with the input string.

10. Guess the Number Game: Develop a program that generates a random number between 1 and 10 and prompts the user to guess it. If the user's guess matches the random number, display a success message; otherwise, ask the user to try again.

11_Nov:

1. Calculator and some logical questions

12_Nov:

1. query selector and query selector ALL
2. innerHTml and all d/f.

Es6 handles asynchrous ops. updated features on js. makes js more efficient.

1. Hoisting:
2. functions
3. objects
4. Promises
5. template literal , var literals
6. destructuring
7. Array and its methods
8. Async await
9. Error Handling.
10. Map Set weak map weak Set

js is sync.