Natural Number Sequence:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12...
This sequence extended infinitely is known as natural number sequence.
We are required to write a JavaScript function that takes in a number, num, as the first and the only argument. The function should find and return the (num)th digit that will appear in this sequence when written, removing the commas and whitespaces.
For example −
If the input number is −
const num = 13;
Then the output should be −
const output = 1;
because '1234567891011' this string has its 13th number as 1
Example
The code for this will be −
const num = 13; const findDigit = (num = 1) => { let str = ''; let i = 1; while(str.length < num){ str += i; i++; }; const required = str[num - 1]; return required; }; console.log(findDigit(num));
Output
And the output in the console will be −
1