forked from fdzcxy212206413/gsl_grs
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.0 KiB
38 lines
1.0 KiB
1 month ago
|
import arrayMap from './_arrayMap.js';
|
||
|
import baseIteratee from './_baseIteratee.js';
|
||
|
import basePickBy from './_basePickBy.js';
|
||
|
import getAllKeysIn from './_getAllKeysIn.js';
|
||
|
|
||
|
/**
|
||
|
* Creates an object composed of the `object` properties `predicate` returns
|
||
|
* truthy for. The predicate is invoked with two arguments: (value, key).
|
||
|
*
|
||
|
* @static
|
||
|
* @memberOf _
|
||
|
* @since 4.0.0
|
||
|
* @category Object
|
||
|
* @param {Object} object The source object.
|
||
|
* @param {Function} [predicate=_.identity] The function invoked per property.
|
||
|
* @returns {Object} Returns the new object.
|
||
|
* @example
|
||
|
*
|
||
|
* var object = { 'a': 1, 'b': '2', 'c': 3 };
|
||
|
*
|
||
|
* _.pickBy(object, _.isNumber);
|
||
|
* // => { 'a': 1, 'c': 3 }
|
||
|
*/
|
||
|
function pickBy(object, predicate) {
|
||
|
if (object == null) {
|
||
|
return {};
|
||
|
}
|
||
|
var props = arrayMap(getAllKeysIn(object), function(prop) {
|
||
|
return [prop];
|
||
|
});
|
||
|
predicate = baseIteratee(predicate);
|
||
|
return basePickBy(object, props, function(value, path) {
|
||
|
return predicate(value, path[0]);
|
||
|
});
|
||
|
}
|
||
|
|
||
|
export default pickBy;
|