How can I implement advanced callbacks in my Dash app?

How can I implement advanced callbacks in my Dash app?

You can implement advanced callbacks in Dash by using the @app.callback decorator with multiple inputs and outputs.

Can you give me an example of a callback with multiple inputs?

Sure! Here's a simple example:

@app.callback(
    Output('output-div', 'children'),
    [Input('input-1', 'value'), Input('input-2', 'value')]
)
def update_output(input1, input2):
    return f'Input 1: {input1}, Input 2: {input2}'

What if I want to update multiple outputs?

You can return a list of values corresponding to each output. For example:

@app.callback(
    [Output('output-1', 'children'), Output('output-2', 'children')],
    [Input('input', 'value')]
)
def update_outputs(input_value):
    return f'Output 1: {input_value}', f'Output 2: {input_value * 2}'

Are there any limitations I should be aware of?

Yes, be cautious of callback chaining and performance issues with too many inputs or outputs, as it can slow down your app.