semantic-network/lib/utils/instanceOf/instanceOfFeed.js

A utility library for manipulating a list of links that form a semantic interface to a network of resources.

import { instanceOfLinkedRepresentation } from 'semantic-link';
import { instanceOfForm } from './instanceOfForm';
export function instanceOfFeed(object) {
    // TODO: perhaps also check from feedOnly state
    if (instanceOfLinkedRepresentation(object)) {
        const asObject = object;
        if ((asObject && Array.isArray(asObject.items) && !instanceOfForm(object))) {
            const { items } = asObject;
            const [first] = items;
            // naive check that the items has an 'id' in it
            if (first !== undefined && 'id' in first) {
                return true;
            }
        }
    }
    return false;
}
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