slider_callback_policy

A plot of two interactive sliders. The values are updated simultaneously as the slider bars are dragged to different values. This example demonstrates how CustomJS callbacks react to user interaction events.

Details

Bokeh APIs:

bokeh.layouts.column, bokeh.models.CustomJS

More info:

js_on_event callback triggers

Keywords:

javascript callback

from bokeh.io import show
from bokeh.layouts import column
from bokeh.models import CustomJS, Div, Slider

para = Div(text="<h1>Slider Values:</h1><p>Slider 1: 0<p>Slider 2: 0<p>Slider 3: 0")

s1 = Slider(title="Slider 1 (Continuous)", start=0, end=1000, value=0, step=1)
s2 = Slider(title="Slider 3 (Mouse Up)", start=0, end=1000, value=0, step=1)

callback = CustomJS(args=dict(para=para, s1=s1, s2=s2), code="""
    para.text = "<h1>Slider Values</h1><p>Slider 1: " + s1.value  + "<p>Slider 2: " + s2.value
""")

s1.js_on_change('value', callback)
s2.js_on_change('value_throttled', callback)

show(column(s1, s2, para))