Question

How to find the longest repeating character in a string with TypeScript

Answer 1

function find_longest_repeating_character(str: string) {
    let longest_count: number = 0;
    let size: number = str.length;
    let longest_repeating_character: string = ' ';
    
    for (let i: number = 0; i < size; ) {
        let ch: string = str.charAt(i);
        let count: number = 0;
        for (; i < size && ch == str.charAt(i); i++) {
            count++;
        }
        if (count > longest_count) {
            longest_count = count;
            longest_repeating_character = ch;
        }
    }
    return longest_repeating_character;
}

const str: string = "jjjwwhhhaabbbbhhhhhhhdddefgggghhw88";

console.log(find_longest_repeating_character(str));





/*
run:

"h"

*/

 

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