oxc/missing-throw

A statement that's only new Error("...") creates an error and throws it away. Nothing is thrown, and the code carries on as if the check passed.

An error that's assigned, returned or passed to a function isn't reported. Only Error itself is checked, not other classes such as TypeError.

--fix-suggestions adds the throw.

Configure

Off by default. To turn it on:

[lint.rules]
"oxc/missing-throw" = "error" # or "warn"

Examples

Reported:

function setAge(age) {
  if (age < 0) {
    new Error("age must not be negative");
  }
  user.age = age;
}

Not reported:

function setAge(age) {
  if (age < 0) {
    throw new Error("age must not be negative");
  }
  user.age = age;
}

const timeout = new Error("timed out");
reject(new Error("canceled"));