Index of First Occurrence Problem Statement

Given two strings A and B, determine the index of the first occurrence of A in B. If A is not present in B, return -1.

Example:

Input:

A = "bc", B = "abcddbc"

Output:

1

Explanation:

The string A appears at index 1 and 5 in B (0-based index), but the first occurrence is at index 1.

Constraints:

1

Question

Given two strings A and B, determine the index of the first occurrence of A in B. If A is not present in B, return -1.

A = "bc", B = "abcddbc"

The string A appears at index 1 and 5 in B (0-based index), but the first occurrence is at index 1.

You do not need to print anything. It has already been taken care of. Just implement the given function.

Accepted Answer

Find the index of the first occurrence of string A in string B.

Iterate through string B and check if a substring of length equal to A matches A.
Return the index of the first occurrence of A in B, or -1 if not found.

Accepted Answer

let a = 'bc';

let b = 'abcddbc';

let bArray = b.split("");

let aArray = a.split("");

console.log(bArray);

var flag = 0;

for(let i=0; i

if(bArray[i] == aArray[0] && bArray[i+1] == aArray[1] ){

flag = i;

console.log("came");

break;

}else{

flag = -1

}

console.log(flag);

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