I would like to ask you a question about the dict output in the javascript list.

var data = [
    { { 'a' : '1',  'b' : '2' ,  'c' : '3' },
    { { 'd' : '4', 'e' : '5', 'f' : '6' },
    { { 'g' : '7', 'h' : '8', 'i' : '9' }
];

// The data is an array of objects (corresponding to the dict of the Python) (corresponding to the list of Pythons).
// So if you go around the data...
data.forEach((obj) => {

    // ...You can do something with each object (corresponding to Python's dict).
    // Convert this to a JSON string and then...
    let str = JSON.stringify(obj);

    // Let's subtract the first "{" and the last "}" and print it out.
    console.log(str.substring(1, str.length - 1));
});