[poolifier.git] / src / utils.ts

import type { WorkerChoiceStrategyOptions } from './pools/selection-strategies/selection-strategies-types'

/**
 * An intentional empty function.
 */
export const EMPTY_FUNCTION: () => void = Object.freeze(() => {
  /* Intentionally empty */
})

/**
 * Default worker choice strategy options.
 */
export const DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS: WorkerChoiceStrategyOptions =
  {
    medRunTime: false
  }

/**
 * Compute the median of the given data set.
 *
 * @param dataSet - Data set.
 * @returns The median of the given data set.
 */
export const median = (dataSet: number[]): number => {
  if (Array.isArray(dataSet) && dataSet.length === 1) {
    return dataSet[0]
  }
  dataSet = dataSet.slice().sort((a, b) => a - b)
  return (dataSet[(dataSet.length - 1) >> 1] + dataSet[dataSet.length >> 1]) / 2
}

export const isPlainObject = (obj: unknown): boolean =>
  typeof obj === 'object' &&
  obj !== null &&
  obj?.constructor === Object &&
  Object.prototype.toString.call(obj) === '[object Object]'
Commit	Line	Data
	1	import type { WorkerChoiceStrategyOptions } from './pools/selection-strategies/selection-strategies-types'
	2
	3	/**
	4	* An intentional empty function.
	5	*/
	6	export const EMPTY_FUNCTION: () => void = Object.freeze(() => {
	7	/* Intentionally empty */
	8	})
	9
	10	/**
	11	* Default worker choice strategy options.
	12	*/
	13	export const DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS: WorkerChoiceStrategyOptions =
	14	{
	15	medRunTime: false
	16	}
	17
	18	/**
	19	* Compute the median of the given data set.
	20	*
	21	* @param dataSet - Data set.
	22	* @returns The median of the given data set.
	23	*/
	24	export const median = (dataSet: number[]): number => {
	25	if (Array.isArray(dataSet) && dataSet.length === 1) {
	26	return dataSet[0]
	27	}
	28	dataSet = dataSet.slice().sort((a, b) => a - b)
	29	return (dataSet[(dataSet.length - 1) >> 1] + dataSet[dataSet.length >> 1]) / 2
	30	}
	31
	32	export const isPlainObject = (obj: unknown): boolean =>
	33	typeof obj === 'object' &&
	34	obj !== null &&
	35	obj?.constructor === Object &&
	36	Object.prototype.toString.call(obj) === '[object Object]'