[Easy] Valid Parentheses

Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.

An input string is valid if:

1. Open brackets must be closed by the same type of brackets.
2. Open brackets must be closed in the correct order.
3. Every close bracket has a corresponding open bracket of the same type.

 

Example 1:

Input: s = "()"
Output: true

Example 2:

Input: s = "()[]{}"
Output: true

Example 3:

Input: s = "(]"
Output: false

 

Constraints:

• 1 <= s.length <= 104
• s consists of parentheses only '()[]{}'.

var isValid = function(s) {
  function pop(s){
      if(!s) return true
      if(s.includes("()") || s.includes("[]") || s.includes("{}")) {
        s = s.replaceAll("()", "")
        s = s.replaceAll("[]", "")
        s = s.replaceAll("{}", "")
      } else {
          return false
      }
      return pop(s)
    }
  return pop(s)
};