Insert a single-element container.

Inserts a container into your app that can be used to hold a single element. This allows you to, for example, remove elements at any point, or replace several elements at once (using a child multi-element container).

To insert/replace/clear an element on the returned container, you can use "with" notation or just call methods directly on the returned object. See examples below.

Function signature

st.empty()

Examples

Overwriting elements in-place using "with" notation:

import time

with st.empty():
    for seconds in range(60):
        st.write(f"⏳ {seconds} seconds have passed")
        time.sleep(1)
    st.write("✔️ 1 minute over!")

Replacing several elements, then clearing them:

placeholder = st.empty()

# Replace the placeholder with some text:
placeholder.text("Hello")

# Replace the text with a chart:
placeholder.line_chart({"data": [1, 5, 2, 6]})

# Replace the chart with several elements:
with placeholder.container():
    st.write("This is one element")
    st.write("This is another")

# Clear all those elements:
placeholder.empty()

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