question/remove-characters

[giscus[bot]]

question/remove-characters

北美前端面试攻略

https://us-fe.github.io/question/remove-characters.html

[spoose]

function removeChars(str){
    let stack = [];

    for (let i = 0; i < str.length; i++) {
        let currentChar = str.charAt(i);

        if (currentChar === 'b') {
            continue;
        }

        if (currentChar === 'c' && stack.length > 0 && stack[stack.length - 1] === 'a') {
            stack.pop();
        } else {
            stack.push(currentChar);
        }
    }

    return stack.join('');
}