@studnicky/v8/computed-object-properties

Disallows computed property keys in object literals ({ [key]: value }). Computed keys produce a dictionary-mode object, bypassing V8's hidden-class fast paths. Use a Map for dynamic key-value associations or assign properties individually after object creation.

Fixable: No · Options: No · Suggested severity: error

✗ Incorrect

const obj = { [key]: value };

const config = {
  [Symbol.toStringTag]: 'Config',
  [dynamicKey]: dynamicValue
};

✓ Correct

// Use a Map for dynamic key-value associations
const map = new Map<string, string>();
map.set(key, value);

// Assign after creation for static shapes
const obj: Record<string, string> = {};
obj[key] = value;