eslint/no-new-native-nonconstructor Correctness

✅ This rule is turned on by default.

What it does

Disallow new operators with global non-constructor functions (Symbol, BigInt)

Why is this bad?

Both new Symbol and new BigInt throw a type error because they are functions and not classes. It is easy to make this mistake by assuming the uppercase letters indicate classes.

Example

Examples of incorrect code for this rule:

// throws a TypeError
let foo = new Symbol("foo");

// throws a TypeError
let result = new BigInt(9007199254740991);

Examples of correct code for this rule:

let foo = Symbol("foo");

let result = BigInt(9007199254740991);

How to use

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

CLI

oxlint --deny no-new-native-nonconstructor

Config (.oxlintrc.json)

{
  "rules": {
    "no-new-native-nonconstructor": "error"
  }
}

References

• Rule Source