Overview
Introduction
Removing every item that matches a particular value or pattern from a pasted list is a common cleanup task, whether it's stripping out a placeholder value or purging entries matching a known-bad pattern.
List Item Deleter handles this directly: give it a value or pattern and it returns your list with every match removed.
What Is List Item Deleter?
A targeted item-removal tool: it tests every item in your list against a term using exact, contains, or regex matching, and keeps only the items that don't match.
Unlike a filter-and-invert approach, deletion is the tool's primary, explicit purpose, so the language and defaults are built around "removing what matches".
How List Item Deleter Works
The input is split into items using the selected separator, then every item is tested against your term using the chosen match mode.
Items that match are excluded from the output; everything else is kept in its original order and rejoined using the selected separator.
When To Use List Item Deleter
Use it to strip out a known placeholder, sentinel value, or unwanted pattern from a pasted list before further processing.
It's handy after using List Item Finder to confirm exactly what a search term matches, before committing to deleting it.
Often used alongside List Filter, List Item Finder and List Item Replacer.
Features
Advantages
- Three match modes cover exact removal, loose substring removal, and full regex-pattern removal.
- Safe on no-match input, it simply returns the list unchanged rather than erroring.
Limitations
- Deletes every matching item in one pass; there's no way to delete only the Nth match without first using List Item Finder to identify it.
- Regex mode uses default JavaScript regex flags; case-insensitivity must be built into the pattern.
Examples
Best Practices & Notes
Best Practices
- Use List Item Finder first to preview exactly which items and positions will be affected before deleting.
- Prefer Exact mode when you want to avoid accidentally deleting items that only partially match your term.
Developer Notes
Filters the split items array with `Array.prototype.filter()`, keeping any item where the match test (`===`, `.includes()`, or `RegExp.test()`) returns false, then rejoins the survivors using the shared `joinListItems` helper.
List Item Deleter Use Cases
- Removing a known placeholder or sentinel value from an exported list
- Purging entries matching an unwanted pattern before importing data elsewhere
- Cleaning test or sample data out of a production list
Common Mistakes
- Using Contains mode when Exact mode was intended, accidentally deleting more items than expected because they merely contain the term.
- Forgetting that regex special characters like `.` need escaping if you want them matched literally.
Tips
- If you're unsure how many items will be affected, run List Item Finder with the same term and match mode first to preview the impact.
- Combine with List Item Replacer if you need to substitute rather than remove matching content.