code: function sanicIncludes(array, searchElement, fromIndex) {
      if (!(array instanceof Array)){
          throw new TypeError('array is not an Array');
      }
  
      if (!array.length){
          return false;
      }
  
      let i = 0;
      const iMax = array.length;
  
      if (fromIndex > 0){
          i = fromIndex;
      } else if (fromIndex < 0 && fromIndex > -array.length){
          i = array.length + fromIndex;
      }
  
      for (; i < iMax; i++){
          if (array[i] === searchElement) {
              return true;
          }
      }
  
      return false;
  }
docs: /* Documentation
  
  https://medium.com/@jakubsynowiec/unique-array-values-in-javascript-7c932682766c
  Set.has() : too too slow (x0.05)