regexp/no-useless-assertions
💼 This rule is enabled in the following configs: 🟢 flat/recommended, 🔵 recommended.
💡 This rule is manually fixable by editor suggestions.
disallow assertions that are known to always accept (or reject)
📖 Rule Details
Some assertions are unnecessary because the rest of the pattern forces them to always be accept (or reject).
Limitations
Right now, this rule is implemented by only looking a single character ahead and behind. This is enough to determine whether the builtin assertions (\b, \B, ^, $) trivially reject or accept but it is not enough for all lookarounds. The algorithm determining the characters ahead and behind is very conservative which can lead to false negatives.
🔧 Options
Nothing.
❤️ Compatibility
This rule was taken from eslint-plugin-clean-regex.
This rule is compatible with clean-regex/no-unnecessary-assertions rule.
🚀 Version
This rule was introduced in eslint-plugin-regexp v0.9.0