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.
20 lines
574 B
20 lines
574 B
3 years ago
|
import getLength from './_getLength.js';
|
||
|
|
import contains from './contains.js';
|
||
|
|
|
||
|
|
// Produce an array that contains every item shared between all the
|
||
|
|
// passed-in arrays.
|
||
|
|
export default function intersection(array) {
|
||
|
|
var result = [];
|
||
|
|
var argsLength = arguments.length;
|
||
|
|
for (var i = 0, length = getLength(array); i < length; i++) {
|
||
|
|
var item = array[i];
|
||
|
|
if (contains(result, item)) continue;
|
||
|
|
var j;
|
||
|
|
for (j = 1; j < argsLength; j++) {
|
||
|
|
if (!contains(arguments[j], item)) break;
|
||
|
|
}
|
||
|
|
if (j === argsLength) result.push(item);
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|