source: trip-planner-front/node_modules/onetime/index.d.ts@ 6fe77af

declare namespace onetime {
        interface Options {
                /**
                Throw an error when called more than once.

                @default false
                */
                throw?: boolean;
        }
}

declare const onetime: {
        /**
        Ensure a function is only called once. When called multiple times it will return the return value from the first call.

        @param fn - Function that should only be called once.
        @returns A function that only calls `fn` once.

        @example
        ```
        import onetime = require('onetime');

        let i = 0;

        const foo = onetime(() => ++i);

        foo(); //=> 1
        foo(); //=> 1
        foo(); //=> 1

        onetime.callCount(foo); //=> 3
        ```
        */
        <ArgumentsType extends unknown[], ReturnType>(
                fn: (...arguments: ArgumentsType) => ReturnType,
                options?: onetime.Options
        ): (...arguments: ArgumentsType) => ReturnType;

        /**
        Get the number of times `fn` has been called.

        @param fn - Function to get call count from.
        @returns A number representing how many times `fn` has been called.

        @example
        ```
        import onetime = require('onetime');

        const foo = onetime(() => {});
        foo();
        foo();
        foo();

        console.log(onetime.callCount(foo));
        //=> 3
        ```
        */
        callCount(fn: (...arguments: any[]) => unknown): number;

        // TODO: Remove this for the next major release
        default: typeof onetime;
};

export = onetime;