var isValid = function (s) {
var stack = [];
var dict = [];
dict.push({ key: "(", value: ")" });
dict.push({ key: "[", value: "]" });
dict.push({ key: "{", value: "}" });
const found = dict.find(element => element.key === '(');
for (const character of s) {
switch (character) {
case '(':
case '[':
case '{':
stack.push(dict.find(element => element.key === character));
break;
case ')':
case ']':
case '}':
const foundCharacter = dict.find(element => element.value === character);
if (stack.length === 0 || stack[stack.length - 1] != foundCharacter) {
return false;
}
stack.pop();
break;
}
}
return stack.length === 0;
};
console.log(isValid('()[]{}')); // true
console.log(isValid('([)]')); // false
