angular-pipes/esm2015/array/intersection.pipe.js

Angular pipes library

import * as tslib_1 from "tslib";
import { Pipe, NgModule } from '@angular/core';
import { isArray, isDeepObject, unwrapDeep, deepIndexOf } from '../utils/utils';
let IntersectionPipe = class IntersectionPipe {
    transform(a, b) {
        if ((!isArray(a) && !isDeepObject(a)) || !isArray(b)) {
            return [];
        }
        if (isDeepObject(a)) {
            const unwrapped = unwrapDeep(a);
            if (!isArray(unwrapped)) {
                return [];
            }
            return unwrapped.reduce((intersection, value) => intersection.concat(deepIndexOf(b, value) !== -1 && deepIndexOf(intersection, value) === -1 ? value : []), []);
        }
        return a.reduce((intersection, value) => intersection.concat(b.indexOf(value) !== -1 && intersection.indexOf(value) === -1 ? value : []), []);
    }
};
IntersectionPipe = tslib_1.__decorate([
    Pipe({
        name: 'intersection',
    })
], IntersectionPipe);
export { IntersectionPipe };
let NgIntersectionPipeModule = class NgIntersectionPipeModule {
};
NgIntersectionPipeModule = tslib_1.__decorate([
    NgModule({
        declarations: [IntersectionPipe],
        exports: [IntersectionPipe],
    })
], NgIntersectionPipeModule);
export { NgIntersectionPipeModule };
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