ut2/lib/difference.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var eq = require('./eq.js');
var identity = require('./identity.js');
var createIteratee = require('./internals/createIteratee.js');
var isArray = require('./isArray.js');

function difference(array, values, iteratee, strictCheck) {
    if (iteratee === void 0) { iteratee = identity; }
    if (strictCheck === void 0) { strictCheck = false; }
    if (!isArray(array)) {
        return [];
    }
    if (!isArray(values)) {
        return array;
    }
    var internalIteratee = createIteratee(iteratee);
    return array.filter(function (item) {
        var current = internalIteratee(item);
        return values.findIndex(function (value) { return eq(internalIteratee(value), current, strictCheck); }) === -1;
    });
}

module.exports = difference;