28. Find the Index of the First Occurrence in a String | JavaScript | LeetCode Daily Challenge

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I have created a detailed solution to the problem along with examples.

I have created a detailed video solution for the leetcode daily challenge.
#javascript #leetcode #leetcodedailychallenge #coding

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LeetCodeWithMonu

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Great video! I really enjoyed watching it. Your problem-solving methods are very nice and easy to understand. Keep doing what you're doing. You deserve more subscribers for the effort you put into making such informative and helpful content.

gowthamtalkies

Wow, literally best video explanation I've seen. Keep it up!

mrawesome

The time complexity on which you solved is O(n^2). This problem can be solved in O(n) using KMP string search algorithm.

sauravrath

var strStr = function (haystack, needle) {
let pointer = 0;
for (let i = 0; i < haystack.length; i++) {
if (haystack[i] !== needle[pointer]) {
i = i - pointer;
pointer = 0;
}
else if (pointer === needle.length - 1) {
return i - pointer;
}
else{
pointer ++;
}
}
return -1;
};

agtech

hello! why is my solution 'return haystack.indexOf(needle)' bad? i don't know much about time complexity and etc. because I mainly practice web development, but I've heard of it. can you explain why my answer would be bad?

juxtapose

will you please add deocde string problem

sankaranarayanankm

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