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oxc/bad-comparison-sequence Correctness

✅ This rule is turned on by default.

Qué hace

This rule applies when the comparison operator is applied two or more times in a row.

¿Por qué es problemático?

Because comparison operator is a binary operator, it is impossible to compare three or more operands at once. If comparison operator is used to compare three or more operands, only the first two operands are compared and the rest is compared with its result of boolean type.

Ejemplos

Ejemplos de código incorrecto para esta regla:

if ((a == b) == c) {
  console.log("a, b, and c are the same");
}

Ejemplos de código correcto para esta regla:

if (a == b && b == c) {
  console.log("a, b, and c are the same");
}

Cómo usarla

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)

{
  "rules": {
    "oxc/bad-comparison-sequence": "error"
  }
}

Config (oxlint.config.ts)

import { defineConfig } from "oxlint";

export default defineConfig({
  rules: {
    "oxc/bad-comparison-sequence": "error",
  },
});

CLI

oxlint --deny oxc/bad-comparison-sequence

Versión

Esta regla se añadió en v0.0.3.

Referencias

• Rule Source
• Open rule in Oxc Playground