import { propertyKeyRegex } from './property-key-regex'
import { FlattenParams } from './flat.types'
/**
* @load ./filter-out-params.doc.md
* @memberof module:flat
* @param {FlattenParams} params
* @param {string | Array<string>} properties
* @returns {FlattenParams}
*/
const filterOutParams = (
params: FlattenParams,
properties: string | Array<string>,
): FlattenParams => {
const propertyArray = Array.isArray(properties) ? properties : [properties]
return propertyArray
.filter(propertyPath => !!propertyPath)
.reduce((globalFiltered, propertyPath) => {
const regex = propertyKeyRegex(propertyPath)
return Object.keys(globalFiltered)
.filter(key => !key.match(regex))
.reduce((memo, key) => {
memo[key] = (params[key] as string)
return memo
}, {} as FlattenParams)
}, params)
}
export { filterOutParams }
Source