title: How to check if one value exists in an array?
body: <p>I need to check if all the values in X array exist in Y array do something.
  The order does not matter.</p>
  <pre><code>contract test {
  
      uint[] numbers1;
      uint[] numbers2;
  
      function push1(uint num1, uint num2, uint num3) public {
          numbers1.push(num1);
          numbers1.push(num2);
          numbers1.push(num3);
      }
  
      function push2(uint num1, uint num2, uint num3) public {
          numbers2.push(num1);
          numbers2.push(num2);
          numbers2.push(num3);
      }
  
  }
  </code></pre>
  <p>How can I check all numbers in numbers1 exist in numbers2 or not?</p>