Promise {<pending>}说，电子对话框对象什么都不返回

Question

我正在尝试在自己正在构建的本教程应用程序中实现I / O操作。其他所有东西都正常运行，我唯一的问题是应用程序没有console.log（）所需的结果，该结果应该是对话框中所选文件的位置。

这是屏幕截图

Answer 1

正如r3wt所说，当您看到promise<pending>时，表示您没有适当地等待异步函数的返回。尝试将getFileFromUser函数更改为异步，例如：

const getFileFromUser = async () => {

    // Triggers the OS' Open File Dialog box. We also pass it as a Javascript
    // object of different configuration arguments to the function

    //This operation is asynchronous and needs to be awaited
    const files = await dialog.showOpenDialog(mainWindow, {
        // The Configuration object sets different properties on the Open File Dialog 
        properties: ['openFile']
    });

    // If we don't have any files, return early from the function
    if (!files) {
        return;
    }

    // Pulls the first file out of the array

    //const file = files[0];
    // Reads from the file and converts the resulting buffer to a string
    //const content = fs.readFileSync(file).toString();

    // Log the Files to the Console
    console.log(files)
}