You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
31 lines
953 B
JavaScript
31 lines
953 B
JavaScript
6 years ago
|
var arrayMap = require('./_arrayMap'),
|
||
|
|
baseIntersection = require('./_baseIntersection'),
|
||
|
|
baseRest = require('./_baseRest'),
|
||
|
|
castArrayLikeObject = require('./_castArrayLikeObject');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates an array of unique values that are included in all given arrays
|
||
|
|
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
|
||
|
|
* for equality comparisons. The order and references of result values are
|
||
|
|
* determined by the first array.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 0.1.0
|
||
|
|
* @category Array
|
||
|
|
* @param {...Array} [arrays] The arrays to inspect.
|
||
|
|
* @returns {Array} Returns the new array of intersecting values.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* _.intersection([2, 1], [2, 3]);
|
||
|
|
* // => [2]
|
||
|
|
*/
|
||
|
|
var intersection = baseRest(function(arrays) {
|
||
|
|
var mapped = arrayMap(arrays, castArrayLikeObject);
|
||
|
|
return (mapped.length && mapped[0] === arrays[0])
|
||
|
|
? baseIntersection(mapped)
|
||
|
|
: [];
|
||
|
|
});
|
||
|
|
|
||
|
|
module.exports = intersection;
|