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import map from './map.js' | |
import basePickBy from './.internal/basePickBy.js' | |
import getAllKeysIn from './.internal/getAllKeysIn.js' | |
/** | |
* Creates an object composed of the `object` properties `predicate` returns | |
* truthy for. The predicate is invoked with two arguments: (value, key). | |
* | |
* @since 4.0.0 | |
* @category Object | |
* @param {Object} object The source object. | |
* @param {Function} predicate The function invoked per property. | |
* @returns {Object} Returns the new object. | |
* @example | |
* | |
* const object = { 'a': 1, 'b': '2', 'c': 3 } | |
* | |
* pickBy(object, isNumber) | |
* // => { 'a': 1, 'c': 3 } | |
*/ | |
function pickBy(object, predicate) { | |
if (object == null) { | |
return {} | |
} | |
const props = map(getAllKeysIn(object), (prop) => [prop]) | |
return basePickBy(object, props, (value, path) => predicate(value, path[0])) | |
} | |
export default pickBy |