import { Nullable, Arrayable } from './types.js';
declare function nanoid(size?: number): string;
declare function shuffle<T>(array: T[], seed?: number): T[];
interface CloneOptions {
forceWritable?: boolean;
}
interface ErrorOptions {
message?: string;
stackTraceLimit?: number;
}
/**
* Get original stacktrace without source map support the most performant way.
* - Create only 1 stack frame.
* - Rewrite prepareStackTrace to bypass "support-stack-trace" (usually takes ~250ms).
*/
declare function createSimpleStackTrace(options?: ErrorOptions): string;
declare function notNullish<T>(v: T | null | undefined): v is NonNullable<T>;
declare function assertTypes(value: unknown, name: string, types: string[]): void;
declare function isPrimitive(value: unknown): boolean;
declare function slash(path: string): string;
declare function cleanUrl(url: string): string;
declare const isExternalUrl: (url: string) => boolean;
/**
* Prepend `/@id/` and replace null byte so the id is URL-safe.
* This is prepended to resolved ids that are not valid browser
* import specifiers by the importAnalysis plugin.
*/
declare function wrapId(id: string): string;
/**
* Undo {@link wrapId}'s `/@id/` and null byte replacements.
*/
declare function unwrapId(id: string): string;
declare function withTrailingSlash(path: string): string;
declare function isBareImport(id: string): boolean;
declare function toArray<T>(array?: Nullable<Arrayable<T>>): Array<T>;
declare function isObject(item: unknown): boolean;
declare function getType(value: unknown): string;
declare function getOwnProperties(obj: any): (string | symbol)[];
declare function deepClone<T>(val: T, options?: CloneOptions): T;
declare function clone<T>(val: T, seen: WeakMap<any, any>, options?: CloneOptions): T;
declare function noop(): void;
declare function objectAttr(source: any, path: string, defaultValue?: undefined): any;
type DeferPromise<T> = Promise<T> & {
resolve: (value: T | PromiseLike<T>) => void;
reject: (reason?: any) => void;
};
declare function createDefer<T>(): DeferPromise<T>;
/**
* If code starts with a function call, will return its last index, respecting arguments.
* This will return 25 - last ending character of toMatch ")"
* Also works with callbacks
* ```
* toMatch({ test: '123' });
* toBeAliased('123')
* ```
*/
declare function getCallLastIndex(code: string): number | null;
declare function isNegativeNaN(val: number): boolean;
/**
* Deep merge :P
*
* Will merge objects only if they are plain
*
* Do not merge types - it is very expensive and usually it's better to case a type here
*/
declare function deepMerge<T extends object = object>(target: T, ...sources: any[]): T;
export { assertTypes, cleanUrl, clone, createDefer, createSimpleStackTrace, deepClone, deepMerge, getCallLastIndex, getOwnProperties, getType, isBareImport, isExternalUrl, isNegativeNaN, isObject, isPrimitive, nanoid, noop, notNullish, objectAttr, shuffle, slash, toArray, unwrapId, withTrailingSlash, wrapId };
export type { DeferPromise };
