javascript - No data when emitting event NodeJS

Question

I try to fire an event with some data with it. The data is an object with 3 large arrays of numbers. I want to reset those arrays, after I fired the event. When I do that, the event listener is not getting the data.

How is that?

Works:

    // Assume each array filled with alot of data
    let collected_data: collected_data = {
        battery_data: [], 
        sensor_data: [],
        time_data: []
    }
    sensorData.emit("data", collected_data);

Not working:

    let collected_data: collected_data = {
        battery_data: [],
        sensor_data: [],
        time_data: []
    }
    sensorData.emit("data", collected_data);
    
    collected_data.battery_data = [];
    collected_data.sensor_data= [];
    collected_data.time_data= [];

question from:https://stackoverflow.com/questions/65626292/no-data-when-emitting-event-nodejs

Answer 1

Try using this syntax:

let collected_data = {
        battery_data: [], 
        sensor_data: [],
        time_data: []
    }