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noNewSymbol

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Diagnostic Category: lint/correctness/noNewSymbol

JavaScript (and super languages)

Since: v1.0.0

Sources:

Same as: no-new-symbol

Description

Disallow new operators with the Symbol object.

Symbol cannot be instantiated. This results in throwing a TypeError.

Examples

Invalid

var foo = new Symbol('foo');

code-block.js:1:11 lint/correctness/noNewSymbol  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Symbol cannot be called as a constructor.
  
  > 1 │ var foo = new Symbol(‘foo’);
      │           ^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Remove new.
  
    1 │ var·foo·=·new·Symbol(‘foo’);
      │           ----

Valid

var bar = Symbol('bar');
function baz() {
    function Symbol() { }
    new Symbol();
}

How to configure

{
  "linter": {
    "rules": {
      "correctness": {
        "noNewSymbol": "error"
      }
    }
  }
}