JavaScript Numbers Explained

 In JavaScript, numbers are a fundamental data type used to represent numerical values, both integers (whole numbers) and floating-point numbers (numbers with decimals). 

Unlike some other programming languages, JavaScript doesn't differentiate between integer and floating-point numbers; both are treated as the same data type called Number. 

This means that whether you're working with 5 or 5.5, JavaScript handles them in the same way. JavaScript also supports very large and very small numbers using scientific notation (e.g., 1e6 for 1 million).

One thing to keep in mind is that JavaScript numbers are based on the IEEE 754 standard, which can sometimes lead to precision issues with floating-point arithmetic. 

For example, 0.1 + 0.2 doesn't exactly equal 0.3 due to how these numbers are stored in memory. 

Despite this, JavaScript provides a range of built-in methods to work with numbers, such as rounding, converting to integers, and checking for infinity or NaN (Not-a-Number).

10 Example Codes:

1. Basic Addition:

   
   let sum = 5 + 3;
   console.log(sum); // Outputs: 8
   

2. Subtraction:

   
   let difference = 10 - 4;
   console.log(difference); // Outputs: 6
   

3. Multiplication:

   
   let product = 7 * 6;
   console.log(product); // Outputs: 42
   

4. Division:

   
   let quotient = 20 / 4;
   console.log(quotient); // Outputs: 5
   

5. Modulus (Remainder):

   
   let remainder = 10 % 3;
   console.log(remainder); // Outputs: 1
   

6. Exponentiation:

   
   let power = 2 ** 3;
   console.log(power); // Outputs: 8
   

7. Incrementing a Number:

   
   let count = 0;
   count++;
   console.log(count); // Outputs: 1
   

8. Decrementing a Number:

   
   let count = 5;
   count--;
   console.log(count); // Outputs: 4
   

9. Parsing a String to a Number:

   
   let num = parseInt("123");
   console.log(num); // Outputs: 123
   

10. Checking for NaN:

    
    let notANumber = "abc" / 3;
    console.log(isNaN(notANumber)); // Outputs: true