message: chore: typo in variable name
diff: @@ -57,9 +57,9 @@ function checkNode (node: ASTNode, warn: Function) {
  }
  function checkEvent (exp: string, text: string, warn: Function, range?: Range) {
  - const stipped = exp.replace(stripStringRE, '')
  - const keywordMatch: any = stipped.match(unaryOperatorsRE)
  - if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
  + const stripped = exp.replace(stripStringRE, '')
  + const keywordMatch: any = stripped.match(unaryOperatorsRE)
  + if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
  warn(
  `avoid using JavaScript unary operator as property name: ` +
  `"${keywordMatch[0]}" in expression ${text.trim()}`,
  