text: // Test functions
  function multiply (a, b) {
    'use strict'
    return a * b
  }
  
  function divide (a, b) {
    'use strict'
    try {
      return multiply(add(a, b), a, b) / c
    } catch (e) {
      _opbeat('captureException', e)
    }
  }
  
  document.querySelector('.btn-test4').addEventListener('click', function () {
    divide(123 / 2)
  }, false)
  