@thi.ng/arrays/peek.d.ts

Array / Arraylike utilities

/**
 * Returns first element of given array or `undefined` if array is empty.
 *
 * @param buf - array
 */
export declare const first: <T>(buf: ArrayLike<T>) => T;
/**
 * Returns last element of given array or `undefined` if array is empty.
 *
 * @param buf - array
 */
export declare const peek: <T>(buf: ArrayLike<T>) => T;
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