Anjali Gurjarfunction isValid(s) {
const stack = [];
const map = { ')': '(', ']': '[', '}': '{' };
for (let char of s) {
if (char in map) { // If it's a closing bracket
if (stack.pop() !== map[char]) return false; // Check last open bracket
} else {
stack.push(char); // Push opening brackets
}
}
return stack.length === 0;
}
console.log(isValid("{[()]}")); // true
console.log(isValid("{[(])}")); // false
console.log(isValid("{[()")); // false
