I am trying to achieve 3,4,5 in output. But, am getting only 3,5 .its jumping/skipping one number. Donno why. Given my code below. Help me to fix the error and please let me know why its happening and what i am doing as error ?

Expected output,

3
4
5

output am getting,

3
5

my code,

var input1, input2;
input1 = Number(2);
input2 = Number(5);
for(let i=input1;i<input2;i  ) {
    i=i 1;
    console.log(i);
  }

CodePudding user response：

You are incrementing i inside the body of the for loop even though it already does it for you.

input1 should also be 3.

Use:

var input1, input2;
input1 = Number(3);
input2 = Number(5);
for (let i = input1; i <= input2; i  ) {
  console.log(i);
}

CodePudding user response：

You are incrementing variable 'i' two times

1. On for loop
   

    for(let i=input1;i<input2;i  ) {}
   

2. Inside for loop
   

     i=i 1; 

So your variable 'i' will increment with 2

CodePudding user response：

The for loop already increments i for you. The loop you wrote executes in the following path, going from 1 -> 2 -> 3 -> 4 -> 2 and repeats unless the check at 2 is false:

for(
let i=input1; // 1. Declare initial value [i]
i<input2;     // 3. Check if [i] < [input2]
i             // 4. increment [i] by 1
) 
{             
  i=i 1;      // 2. Run the contents of the loop body
  console.log(i);
}

That means

// First iteration
i = input1        // 1. i = Number(2);
  i = i   1;      // 2. i = 2   1;
  console.log(i)  // 2. console.log(3);
i < input2 ?      // 3. Check if i is smaller than input2. End loop if not
i  ;              // 4. Increment i so i = 4

// Second iteration
  i = i   1;      // 2. i = 4   1;
  console.log(i)  // 2. console.log(5);
i < input2 ?      // 3. Check if i is smaller than input2. End loop if not

// End loop since i < input2 is not true