#81 Coding- Find consecutive 1s in javascript array

To find the maximum number of consecutive 1s in a JavaScript array, follow this simple logic:

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✅ Example Input:

const arr = [1, 1, 0, 1, 1, 1, 0, 1, 1];

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✅ Goal:

Find the longest streak of consecutive 1s.

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✅ Solution using for loop:

let maxCount = 0;
let currentCount = 0;

for (let i = 0; i < arr.length; i++) {
  if (arr[i] === 1) {
    currentCount++;
    maxCount = Math.max(maxCount, currentCount);
  } else {
    currentCount = 0;
  }
}

console.log("Maximum consecutive 1s:", maxCount);

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✅ Output:

Maximum consecutive 1s: 3

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🧠 Explanation:

• currentCount: keeps track of the current streak of 1s.
• maxCount: stores the highest streak seen so far.
• When you hit a 0, reset currentCount.