/**
 *  Misc Helpers
 */
/**
 * @param  {T[]} arr - array to search
 * @param  {T} item - item to search for
 * @returns boolean - true if `item` is in `arr`
 */
export declare function contains<T>(arr: T[], item: T): boolean;
/**
 * Returns Index of first match to `predicate` in `arr`
 * @param arr Array to search
 * @param predicate Function that returns true for a match
 */
export declare function findIndex<T>(arr: T[], predicate: (el: T, index: number) => boolean): number;
/**
 * Returns first match to `predicate` in `arr`
 * @param arr Array to search
 * @param predicate Function that returns true for a match
 */
export declare function find<T>(arr: T[], predicate: (el: T, index: number) => boolean): T;
/**
 * Formats and shortens a url for ui
 * @param  {string} url
 * @param  {number} maxLength - max length of shortened url
 * @returns string
 */
export declare function resourceUrlFormatter(url: string, maxLength: number): string;
/**
 * Helper to add a precision to `Math.round`.
 *
 * _defaults to 2 decimals_
 * @param  {number} num - number to round
 * @param  {number} [decimals=2] - decimal precision to round to
 */
export declare function roundNumber(num: number, decimals?: number): number;
/**
 *
 * Checks if `status` code is `>= lowerBound` and `<= upperBound`
 * @param  {number} status  HTTP status code
 * @param  {number} lowerBound  inclusive lower bound
 * @param  {number} upperBound  inclusive upper bound
 */
export declare function isInStatusCodeRange(status: number, lowerBound: number, upperBound: number): boolean;
/**
 * Converts a seed string to a CSS class by stripping out invalid characters
 * @param {string} seed string to base the CSS class off
 */
export declare function toCssClass(seed: string): string;
/**
 * Conditionally pluralizes (adding 's') `word` based on `count`
 * @param {string} word word to pluralize
 * @param {number} count counter to deceide weather or not `word` should be pluralized
 */
export declare function pluralize(word: string, count: number): string;
/**
 * Check if event is `tab` + `shift` key, to move to previous input element
 * @param {KeyboardEvent} evt Keyboard event
 */
export declare function isTabUp(evt: KeyboardEvent): boolean;
/**
 * Check if event is only `tab` key, to move to next input element
 * @param {KeyboardEvent} evt Keyboard event
 */
export declare function isTabDown(evt: KeyboardEvent): boolean;