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no-equal-nested-conditions

added in: 1.7.0
warning
Pro+
preset: recommended

Warns when an if statement contains another if statement with the same condition.

Example​

❌ Bad:

if (value == 1) {
  // LINT: Avoid duplicate conditions in nested 'if/else if'. Try replacing the duplicate condition or removing it.
  if (value == 1) {
    ...
  }
}

if (value == 1) {
  ...

  // LINT: Avoid duplicate conditions in nested 'if/else if'. Try replacing the duplicate condition or removing it.
  if (value == 1) {
    ...
  }
}

✅ Good:

if (value != 1) {
  if (value == 1) { // Correct, different condition
    ...
  }
}

if (value != 1) {
  ...

  if (value == 1) {
    ...
  }
}

Additional Resources​