no-new-native-nonconstructor.md

title	layout	rule_type	related_rules	further_reading
no-new-native-nonconstructor	doc	problem	no-new-symbol	https://tc39.es/ecma262/#sec-symbol-constructor https://tc39.es/ecma262/#sec-bigint-constructor

Certain functions are not intended to be used with the new operator, but to be called as a function.

var foo = new Symbol("foo");

var bar = new BigInt(9007199254740991)

These throw a TypeError exception.

Rule Details

This rule is aimed at preventing the accidental calling of certain functions with the new operator. These functions are:

• Symbol
• BigInt

Examples

Examples of incorrect code for this rule:

::: incorrect

/*eslint no-new-native-nonconstructor: "error"*/
/*eslint-env es2022*/

var foo = new Symbol('foo');
var bar = new BigInt(9007199254740991);

:::

Examples of correct code for this rule:

::: correct

/*eslint no-new-symbol: "error"*/
/*eslint-env es2022*/

var foo = Symbol('foo');
var bar = BigInt(9007199254740991);

// Ignores shadowed Symbol.
function baz(Symbol) {
    const qux = new Symbol("baz");
}
function quux(BigInt) {
    const corge = new BigInt(9007199254740991);
}

:::

When Not To Use It

This rule should not be used in ES3/5 environments.