TypeScript · Backwards Compatibility

keyofStringsOnly

Make keyof only return strings instead of string, numbers or symbols. Legacy option.

Syntax
"keyofStringsOnly": true

Example

Example
{
  "compilerOptions": {
    "keyofStringsOnly": true
  }
}

More in this group

charset importsNotUsedAsValues noImplicitUseStrict noStrictGenericChecks out preserveValueImports suppressExcessPropertyErrors suppressImplicitAnyIndexErrors

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