Method appendField

lib/helper/WebDriver.js:1288–1294

* {{> appendField }}

(field, value, context = null)

   * {{> appendField }}
   */
  async appendField(field, value, context = null) {
    const res = await findFields.call(this, field, context)
    assertElementExists(res, field, 'Field')
    const elem = selectElement(res, field, this)
    highlightActiveElement.call(this, elem)
    return elem.addValue(value.toString())
  }

  /**
   * {{> clearField }}