from dash import Dash, dcc, html, Input, Output
app = Dash(__name__)
app.layout = html.Div([
html.H6("Change the value in the text box to see callbacks in action!"),
html.Div([
"Input: ",
dcc.Input(id='my-input', value='initial value', type='text')
]),
html.Br(),
html.Div(id='my-output'),
])
@app.callback(
Output(component_id='my-output', component_property='children'),
Input(component_id='my-input', component_property='value')
)
def update_output_div(input_value):
return f'Output: {input_value}'
if __name__ == '__main__':
app.run_server(debug=True)
here they set id='my-input',id='my-output' but why ?