import { propertyKeyRegex } from './property-key-regex.js' | |
import { FlattenParams, GetOptions } from './flat.types.js' | |
/** | |
* @load ./select-params.doc.md | |
* @memberof module:flat | |
* @param {FlattenParams} params | |
* @param {string | Array<string>} properties | |
* @param {GetOptions} [options] | |
* @returns {FlattenParams} | |
*/ | |
const selectParams = ( | |
params: FlattenParams, | |
properties: string | Array<string>, | |
options?: GetOptions, | |
): FlattenParams => { | |
const propertyArray = Array.isArray(properties) ? properties : [properties] | |
const selected = propertyArray | |
.filter((propertyPath) => !!propertyPath) | |
.reduce((globalMemo, propertyPath) => { | |
const regex = propertyKeyRegex(propertyPath, options) | |
const filtered = Object.keys(params) | |
// filter all keys which starts with property path | |
.filter((key) => key.match(regex)) | |
.reduce((memo, key) => { | |
memo[key] = (params[key] as string) | |
return memo | |
}, {} as FlattenParams) | |
return { | |
...globalMemo, | |
...filtered, | |
} | |
}, {} as FlattenParams) | |
return selected | |
} | |
export { selectParams } | |