The escape () function is responsible for coding a string to transfer the information from one computer to the other across a network.
For Example:
<script> document.write(escape("Hello? How are you!")); </script>
Output: Hello%3F%20How%20are%20you%21
The unescape() function is very important as it decodes the coded string.
It works in the following way. For example:
<script> document.write(unescape("Hello%3F%20How%20are%20you%21")); </script>
Output: Hello? How are you!