Website Structure

Frontend-Learner/node_modules/reserved-identifiers/index.d.ts

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+export type Options = {
+	/**
+	Include the [global properties](https://tc39.es/ecma262/#sec-value-properties-of-the-global-object) `globalThis`, `Infinity`, `NaN`, and `undefined`. Although not officially reserved, they should typically [not be used as identifiers](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined#sect1).
+
+	@default false
+	*/
+	readonly includeGlobalProperties?: boolean;
+};
+
+/**
+Provides a list of [reserved identifiers](https://262.ecma-international.org/14.0/#sec-keywords-and-reserved-words) for JavaScript.
+
+@example
+```
+import reservedIdentifiers from 'reserved-identifiers';
+
+const identifiers = reservedIdentifiers();
+const isReserved = identifier => identifiers.has(identifier);
+
+console.log(isReserved('await'));
+//=> true
+```
+*/
+export default function reservedIdentifiers(options?: Options): Set<string>;
+
+/**
+TypeScript's built-in types that are reserved and cannot be used for type names (interfaces, type aliases, enums, classes, type parameters).
+*/
+export type TypeScriptReservedType =
+	| 'any'
+	| 'bigint'
+	| 'boolean'
+	| 'never'
+	| 'null'
+	| 'number'
+	| 'object'
+	| 'string'
+	| 'symbol'
+	| 'undefined'
+	| 'unknown'
+	| 'void';
+
+/**
+Provides a list of TypeScript's built-in types that are reserved and cannot be used for type names (interfaces, type aliases, enums, classes, type parameters).
+
+@example
+```
+import {typeScriptReservedTypes} from 'reserved-identifiers';
+
+const types = typeScriptReservedTypes();
+
+console.log(types.has('any'));
+//=> true
+
+console.log(types.has('unknown'));
+//=> true
+```
+*/
+export function typeScriptReservedTypes(): Set<string>;