text: 'use strict'
  
  /*
   * Create a `yell` function that takes a string
   * and return the same string in upper case
   *
   */
  
   function yell(string){
       let result;
       result = string.toUpperCase();
       return result;
   }
  
  
  //* Begin of tests
  const assert = require('assert')
  
  assert.strictEqual(yell('coco'), 'COCO')
  // End of tests */
  