What rule do you want to change?

no-useless-escape

What change do you want to make?

Generate fewer warnings

How do you think the change should be implemented?

A new option

Example code

/[0\-]/

What does the rule currently do for this code?

It currently marks \- as a useless escape

What will the rule do after it's changed?

It will not mark \- as a useless escape in regex character sets

Participation

• I am willing to submit a pull request to implement this change.

Additional comments

/[0\-]/ while technically a useless escape, omitting the escape is a common source of errors when additional characters are added to the character set accidentally creating a character range. For example /[0-]/ extended into /[0-9]/ produces a very different outcome than adding a single character 9 to the character set.