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  1. Balanced Brackets
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Balanced Brackets

  • evanmico222
     + 0 comments

    js answer using a map for checking correlation:

    function isBalanced(s) {
    // Write your code here
    let openStack = new Array();
    let idx = 0;
    let valid = true;
    let correlationMap = new Map([
        [')', '('],
        [']', '['],
        ['}', '{'],
    ]);
    while(valid && idx<s.length){
        if(correlationMap.has(s[idx]) && (correlationMap.get(s[idx]) != openStack.pop())){
            valid = false;
        }else if(!correlationMap.has(s[idx])){
            openStack.push(s[idx]);
        }
        idx++;
    }
    if(openStack.length > 0) valid = false;
    return (valid)?('YES'):('NO');
}