LeetCode Valid Parentheses

gistfile1.txt

/**
 * @param {string} s
 * @return {boolean}
 */

var isValid = function(s) {
    const charStack = []

    for (i=0; i < s.length; i++){
        let currentChar = s[i];
        
        switch(currentChar) {
            case '(': charStack.push(')');
                break;
            case '[': charStack.push(']');
                break;
            case '{': charStack.push('}')
                break;
            default:
                if(currentChar !== charStack.pop()) return false
        }
    }
    return charStack.length === 0;
    
};