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If you are looking for a simple way to make a Request to Reactor from JavaScript, you can use the FRToolBox. FRToolBox関数のリファレンス

Fusion Reactor ToolBox

Included with the Fusion Reactor plugin is a suite of JavaScript functions called the Fusion Reactor Toolbox. These ‘helper’ functions are designed to handle some tasks like AJAX communications handling and SQL/XML query construction, so that you don’t have to take the time to build those into your own JavaScript solution.

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