Dash Daq slider defaults to the negative minimum value when value is set to 0. [Bug]

[mithi]

I do something like this:

dash_daq.Slider( 
    id=name,
    min=-120,
    max=120,
    value=0,
    size=150,
    updatemode=UPDATE_MODE,
    handleLabel={"showCurrentValue": True,"label": angle},
    step=5,
  )

And my slider defaults to -120 which is the default minimum value instead of the correct value 0. When I use a value=10 my slider defaults correctly to 10 as expected. It seems like this bug only happens when the default value is 0

The version I'm using is Dash DAQ '0.4.0'

I'm using dash in my project here

• https://github.com/mithi/hexapod-robot-simulator which I use that code snippet in this file
• https://github.com/mithi/hexapod-robot-simulator/blob/master/widgets/joint_input_maker.py

Thanks!

[alexcjohnson]

Good catch @mithi! Looks like we fail to distinguish undefined from 0 in several places, at least:

https://github.com/plotly/dash-daq/blob/42111db5c1c07584d4dec41cf1f462e17adc91d5/src/fragments/Slider.react.js#L69

(that's probably the most important one)

https://github.com/plotly/dash-daq/blob/42111db5c1c07584d4dec41cf1f462e17adc91d5/src/fragments/Slider.react.js#L96

(that looks like an edge case, but should also be addressed)

[mithi]

@alexcjohnson , Thanks for taking the time to read and investigate this issue!