Left file: appwork-v1_3_1/vue-starter/tests/e2e/custom-assertions/elementCount.js  
Right file: appwork-v1_4_0/vue-starter/tests/e2e/custom-assertions/elementCount.js  
// A custom Nightwatch assertion. <> /**
// The assertion name is the filename.    * A custom Nightwatch assertion. The assertion name is the filename.
     *
// Example usage:    * Example usage:
//    
//   browser.assert.elementCount(selector, count)    *   browser.assert.elementCount(selector, count)
//    *
// For more information on custom assertions see:    * For more information on custom assertions see:
// http://nightwatchjs.org/guide#writing-custom-assertions    *   https://nightwatchjs.org/guide/extending-nightwatch/#writing-custom-assertions
     *
     *
     * @param {string|object} selectorOrObject
     * @param {number} count
     */
  =  
exports.assertion = function elementCount (selector, count) { <> exports.assertion = function elementCount (selectorOrObject, count) {
      let selector
     
      // when called from a page object element or section
      if (typeof selectorOrObject === 'object' && selectorOrObject.selector) {
        // eslint-disable-next-line prefer-destructuring
        selector = selectorOrObject.selector
      } else {
        selector = selectorOrObject
      }
     
  this.message = `Testing if element <${selector}> has count: ${count}` =   this.message = `Testing if element <${selector}> has count: ${count}`
  this.expected = count     this.expected = count
  this.pass = val => val === count     this.pass = val => val === count
  this.value = res => res.value     this.value = res => res.value
  function evaluator (_selector) {     function evaluator (_selector) {
    return document.querySelectorAll(_selector).length       return document.querySelectorAll(_selector).length
  }     }
  this.command = cb => this.api.execute(evaluator, [selector], cb)     this.command = cb => this.api.execute(evaluator, [selector], cb)
}   }