Replace Digits with Star Dry Run in PYTHON

Replace Digits with Star is an interactive PYTHON dry run visualizer from the Regularexpressions programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Replace Digits with Star Program Code

import re

phone = "My number is 9876543210"
masked = re.sub("[0-9]", "*", phone)

print(masked)

View the complete Regularexpressions programs page.