no-compare-neg-zero

Note: this rule is part of the recommended rule set.

Enable the full set in ende.json:

{
  "lint": {
    "rules": {
      "tags": ["recommended"]
    }
  }
}

Enable the full set using the Ende CLI:

ende lint --rules-tags=recommended

This rule can be explicitly included in or excluded from the rules present in the current tag by adding it to the include or exclude array in ende.json:

{
  "lint": {
    "rules": {
      "include": ["no-compare-neg-zero"],
      "exclude": ["no-compare-neg-zero"]
    }
  }
}

Disallows comparing against negative zero (-0).

Comparing a value directly against negative may not work as expected as it will also pass for non-negative zero (i.e. 0 and +0). Explicit comparison with negative zero can be performed using Object.is.

Invalid:

if (x === -0) {}

Valid:

if (x === 0) {}

if (Object.is(x, -0)) {}