55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
const require_intersectionWith = require("../../array/intersectionWith.js");
|
|
const require_isEqualsSameValueZero = require("../../_internal/isEqualsSameValueZero.js");
|
|
require("../util/eq.js");
|
|
const require_last = require("./last.js");
|
|
const require_uniq = require("./uniq.js");
|
|
//#region src/compat/array/intersectionWith.ts
|
|
/**
|
|
* Returns the intersection of multiple arrays based on a custom equality function.
|
|
*
|
|
* @template T - The type of elements in the arrays
|
|
* @param {ArrayLike<T> | null | undefined} firstArr - The first array to compare
|
|
* @param {...(ArrayLike<T> | null | undefined | ((x: T, y: T) => boolean))} otherArrs - Additional arrays and optional equality function
|
|
* @returns {T[]} Elements from first array that match in all arrays
|
|
*
|
|
* @example
|
|
* const arr1 = [{id: 1}, {id: 2}];
|
|
* const arr2 = [{id: 2}, {id: 3}];
|
|
* const result = intersectionWith(arr1, arr2, (a, b) => a.id === b.id);
|
|
* // result is [{id: 2}]
|
|
*/
|
|
function intersectionWith(firstArr, ...otherArrs) {
|
|
if (firstArr == null) return [];
|
|
const _comparator = require_last.last(otherArrs);
|
|
let comparator = require_isEqualsSameValueZero.isEqualsSameValueZero;
|
|
let uniq$1 = require_uniq.uniq;
|
|
if (typeof _comparator === "function") {
|
|
comparator = _comparator;
|
|
uniq$1 = uniqPreserve0;
|
|
otherArrs.pop();
|
|
}
|
|
let result = uniq$1(Array.from(firstArr));
|
|
for (let i = 0; i < otherArrs.length; ++i) {
|
|
const otherArr = otherArrs[i];
|
|
if (otherArr == null) return [];
|
|
result = require_intersectionWith.intersectionWith(result, Array.from(otherArr), comparator);
|
|
}
|
|
return result;
|
|
}
|
|
/**
|
|
* This function is to preserve the sign of `-0`, which is a behavior in lodash.
|
|
*/
|
|
function uniqPreserve0(arr) {
|
|
const result = [];
|
|
const added = /* @__PURE__ */ new Set();
|
|
for (let i = 0; i < arr.length; i++) {
|
|
const item = arr[i];
|
|
if (added.has(item)) continue;
|
|
result.push(item);
|
|
added.add(item);
|
|
}
|
|
return result;
|
|
}
|
|
//#endregion
|
|
exports.intersectionWith = intersectionWith;
|