Check if string contains substring, array has an item

includes.md

includes in ES6 to search for string, item in array

TLDR: Of course from different prototypes.

   const str = 'We are Indians';
   const subStr = 'India'
   const hasSubStr = str.includes('India');
   
   
   const countries = ['India', 'USA', 'UK'];
   const hasItem = countries.includes(subStr);
   
   console.log(hasSubStr, hasItem); // true, true