$replaceAll
Reference group: String aggregation expressions
What it does
Replaces all occurrences of a substring.
Syntax
{$replaceAll: { input, find, replacement }}
Use case
Remove formatting separators.
$replaceAll: practical example
{ $project: { clean: { $replaceAll: { input: "$phone", find: "-", replacement: "" } } } }💡 Explanation
Replaces all occurrences of a substring.
When to use it
Remove formatting separators.
Key Takeaways
- Replaces all occurrences of a substring.
- Typical use: Remove formatting separators.