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Update balancedParentheses.js #4

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Update balancedParentheses.js #4

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26 changes: 25 additions & 1 deletion tasks/3. Balanced parentheses/balancedParentheses.js
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Original file line number Diff line number Diff line change
@@ -1,3 +1,27 @@
export function areParenthesesBalanced(inputString) {
// TODO: write your code here
}
let stack = [];
let map = {
'(': ')',
'[': ']',
'{': '}'
}

for (let i = 0; i < inputString.length; i++) {


if (inputString[i] === '(' || inputString[i] === '{' || inputString[i] === '[' ) {
stack.push(inputString[i]);
}

else {
let last = stack.pop();

if (inputString[i] !== map[last]) {return false};
}
}

if (stack.length !== 0) {return false};

return true;
}