Maximum Occurring Character in a String – JS

🟢 Easy 🧩 Pattern – Strings and Loops

From the given string of Characters (can be a mix of numbers, alphabets, and other special characters) and we need to find the maximum occurring character.

Examples

Input: "Helooo"
Output: 'o'

Input: "MatrixreadM"
Output: 'M'Code language: JavaScript (javascript)

JS Solution

function maxOccuringCharacter(str) {
    const charCount = {};
    let maxChar = '';
    let maxCount = 0;

    for (const char of str) {
        // Increment character count
        charCount[char] = (charCount[char] || 0) + 1;
        // Update maxChar and maxCount if current count exceeds maxCount
        if (charCount[char] > maxCount) {
            maxChar = char;
            maxCount = charCount[char];
        }
    }
    return maxChar;
}

console.log(maxOccuringCharacter("hello hi how")); // 'h'Code language: JavaScript (javascript)

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