@datorama/akita/esm2015/src/activeState.js

State Management Tailored-Made for JS Applications

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
import { hasEntity } from './hasEntity';
import { isArray } from './isArray';
// @internal
/**
 * @template E
 * @param {?} state
 * @return {?}
 */
export function hasActiveState(state) {
    return state.hasOwnProperty('active');
}
// @internal
/**
 * @param {?} active
 * @return {?}
 */
export function isMultiActiveState(active) {
    return isArray(active);
}
// @internal
/**
 * @template E
 * @param {?} __0
 * @return {?}
 */
export function resolveActiveEntity({ active, ids, entities }) {
    if (isMultiActiveState(active)) {
        return getExitingActives(active, ids);
    }
    if (hasEntity(entities, active) === false) {
        return null;
    }
    return active;
}
// @internal
/**
 * @param {?} currentActivesIds
 * @param {?} newIds
 * @return {?}
 */
export function getExitingActives(currentActivesIds, newIds) {
    /** @type {?} */
    const filtered = currentActivesIds.filter((/**
     * @param {?} id
     * @return {?}
     */
    id => newIds.indexOf(id) > -1));
    /** Return the same reference if nothing has changed */
    if (filtered.length === currentActivesIds.length) {
        return currentActivesIds;
    }
    return filtered;
}
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