@ima/react-page-renderer/dist/esm/client/hooks/settings.js

IMA.js React page renderer.

import { useMemo } from 'react';
import { useComponentUtils } from './componentUtils';
/**
 * IMA $Settings access provider with optional selector.
 *
 * @example
 * const settings = useSettings();
 * console.log(settings.$Cache.enabled);
 *
 * // Using settings selector
 * const { scripts, documentView } = useSettings('$Page.$Render');
 * const esScripts = useSettings('$Page.$Render.esScripts');
 *
 * @param selector Optional path selector.
 * @returns Settings value or undefined.
 */ export function useSettings(selector) {
    const { $Settings } = useComponentUtils();
    if (!selector) {
        return $Settings;
    }
    return useMemo(()=>{
        let segment;
        let curSettings = $Settings;
        const segments = selector.split('.');
        while(segment = segments.shift()){
            if (!(segment in curSettings)) {
                return undefined;
            }
            curSettings = curSettings[segment];
        }
        return curSettings;
    }, [
        $Settings
    ]);
}

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