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es-toolkit

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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

es-toolkit.dev

toss/es-toolkit

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/** * Uses a binary search to determine the lowest index at which `value` * should be inserted into `array` in order to maintain its sort order. * * @category Array * @param {ArrayLike<T> | null | undefined} array The sorted array to inspect. * @param {T} value The value to evaluate. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * sortedIndex([30, 50], 40) * // => 1 */ declare function sortedIndex<T>(array: ArrayLike<T> | null | undefined, value: T): number; /** * Uses a binary search to determine the lowest index at which `value` * should be inserted into `array` in order to maintain its sort order. * * @category Array * @param {ArrayLike<T> | null | undefined} array The sorted array to inspect. * @param {T} value The value to evaluate. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * sortedIndex([30, 50], 40) * // => 1 */ declare function sortedIndex<T>(array: ArrayLike<T> | null | undefined, value: T): number; export { sortedIndex };