rules:
- id: eqeq-is-bad
  patterns:
  - pattern-not-inside: assert(...)
  - pattern-either:
    - pattern: $X == $X
    - pattern: $X != $X
  - pattern-not: 1 == 1
  message: >-
    Detected a useless comparison operation `$X == $X` or `$X != $X`. This
    operation is always true.
    If testing for floating point NaN, use `math.isnan`, or
    `cmath.isnan` if the number is complex.
  languages:
  - javascript
  - typescript
  severity: ERROR
  metadata:
    category: correctness
    technology:
    - javascript