Call a JavaScript function action

The Call a JavaScript function action in the Browser package enables you to call an existing JavaScript function directly in a webpage or in an iFrame within a webpage. This action also allows you to call a JavaScript function in desktop Chromium Embedded Framework (CEF) applications.

Configure the settings

Note:
  • For macOS platform, this action supports Google Chrome and Safari browsers.
  • For Windows platform, this action supports Google Chrome and Chromium-based Microsoft Edge browsers.
  • This action supports CEF-based desktop applications.
  1. Select the browser tab from the list of active supported browser tabs or insert a window variable. To call a JavaScript function in CEF applications, use the Application tab. From the Application tab, select the specific CEF application from the list of applications. A CEF application integrates web browser functionality by embedding Chromium into a desktop application.
    Important:
    • To automate desktop applications that use CEF framework, you must develop and run your automations in elevated mode. See Automate applications running as an admin user.
    • To automate CEF applications, ensure you use the Browser package version 3.13.1 and later.
    Note:
    • Automating cross domain iFrame in CEF applications is not supported.
    • CEF applications will not be listed under the Browser tab.

    您可以使用正则表达式 (regex) 来标识窗口标题。 将每个正则表达式条件选择为字符串或模式，然后输入值。 默认情况下，窗口标题字段区分大小写。

    要识别浏览器标题，您可以启用区分大小写选项以匹配字母大小写，或禁用该选项以识别字母大小写不匹配的窗口标题。
    Note: 确保您系统上安装的最低 Bot Agent 版本是随 Automation 360 v.26 发布的版本。 如果存在随 Automation 360 v.25 或更早版本发布的 Bot Agent 版本，则默认情况下，将仅通过匹配字母大小写（区分大小写）识别窗口标题。
    例如，要匹配所有以单词开头、后跟 - Notepad 的窗口标题名称，您可以输入字符串值 * -Notepad，或者仅为与此模式匹配的窗口标题使用模式值 ((\w)\s)*document-Notepad。
    Note:
    • 当您使用类型为字符串的正则表达式，并将 -title 作为任何 action 的窗口标题的输入值时，bot 可能会遇到运行时错误。 为了防止运行时错误，请确保在将字符串输入添加为 *-title 时，具有特定标题的应用程序已打开。 星号 (*) 只是一个字符，而不是通配符。
    • 当您使用类型为 Pattern 的正则表达式，并将 -title 作为任何 action 的窗口标题的输入值时，bot 可能会遇到运行时错误，因为输入值 *-title 是不正确的。

      请确保使用有效的正则表达式模式。

  2. Optional: Use the Capture object option to capture the iFrames.
    Note: You can use the Capture object feature to call and run an existing JavaScript function inside an iFrame.
  3. In the Function name field, specify the name of the existing JavaScript function that you want to call.
  4. Optional: In the Arguments section, click Add argument to add arguments that must be passed to call the JavaScript function.
    1. In the Argument details dialog box, select the Argument type required for the specific argument.
    2. In the value field, enter the corresponding value or variable of the selected type that you want to pass.
      Note: All string values in arguments are passed as is without any character being converted or escaped.
  5. Optional: In the Time out after field, enter the number of seconds the bot must wait for the browser action to complete.
    Note: Enter a timeout value of at least 9 seconds.
  6. In the Return Type field, select the type of value returned by the JavaScript function.
    Note: If the function does not return anything, in the Return Type field, select None.
  7. For any Return type except None, in the Save the outcome to a variable field, select a variable for selected Return type to hold the JavaScript function output.

Create variable

To create a variable for selected Return type, perform the following steps:
  1. Click the Create variable symbol next to the Save the outcome to a variable field.

    A Create variable dialog opens with default variable name for the type of variable selected.

  2. Optional: Specify the variable information in the Description field.
  3. Optional: Specify a value in the Default value field.
  4. Click Create & select to select the newly created variable.

Supported JavaScript types in Argument and Return type fields

The following JavaScript types are supported:

  • String, Number, and Boolean JavaScript types which correspond to the same variable types in bot variables.
  • Array JavaScript type which corresponds to the List variable type in bot variables.
  • Object JavaScript type which corresponds to the Dictionary variable type in bot variables.