Stripping Prefixes from Strings: Removing "data-"

Many programming tasks involve manipulating strings. One common task is removing specific parts of a string, such as prefixes or suffixes. In this case, we want to remove the "data-" prefix from a string while preserving the remaining characters.

The following JavaScript code snippet demonstrates how to achieve this using the replace() method:

var ret = "data-123".replace('data-','');
console.log(ret);   //prints: 123

Here's how the code works:

1. The replace() method is used to search for a specific substring ("data-") within the given string ("data-123").
2. If the substring is found, it is replaced with an empty string, effectively removing it.
3. The resulting string ("123") is stored in the ret variable.
4. The console.log() statement prints the modified string, which in this case is "123".

This approach can be used to remove any unwanted prefixes from strings, allowing you to extract the desired data without unnecessary clutter.