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eslint/radix Pedantic

⚠️🛠️ A dangerous auto-fix is available for this rule for some violations.

What it does

Enforce the consistent use of the radix argument when using parseInt(), which specifies what base to use for parsing the number.

Why is this bad?

Using the parseInt() function without specifying the radix can lead to unexpected results.

See the MDN documentation for more information on how parseInt() handles certain edge-cases.

Configuration

Note that passing an option to this rule has no effect on its behavior. In v1.49.0, the config option for this rule was removed and made a no-op. This matches the behavior change made in ESLint v10, and the rule now always enforces that a radix parameter is provided to parseInt().

If you receive new violations due to this change, you may either opt to disable this rule, or add the radix parameter to all usages of parseInt() in your codebase.

Examples

Examples of incorrect code for this rule:

let num = parseInt("071"); // 57

Examples of correct code for this rule:

let num = parseInt("071", 10); // 71

How to use

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

Config (.oxlintrc.json)

{
  "rules": {
    "radix": "error"
  }
}

CLI

oxlint --deny radix

References

• Rule Source