react-on-rails/lib/context.js

react-on-rails JavaScript for react_on_rails Ruby gem

let currentRailsContext = null;
// caches context and railsContext to avoid re-parsing rails-context each time a component is rendered
// Cached values will be reset when resetRailsContext() is called
export function getRailsContext() {
    // Return cached values if already set
    if (currentRailsContext) {
        return currentRailsContext;
    }
    const el = document.getElementById('js-react-on-rails-context');
    if (!el?.textContent) {
        return null;
    }
    try {
        currentRailsContext = JSON.parse(el.textContent);
        return currentRailsContext;
    }
    catch (e) {
        console.error('Error parsing Rails context:', e);
        return null;
    }
}
export function resetRailsContext() {
    currentRailsContext = null;
}
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