Function validateProp

dash/dash-renderer/src/actions/dependencies.js:543–570

(id, idPath, rawProp, cls, callbacks)

    }

    function validateProp(id, idPath, rawProp, cls, callbacks) {
        const prop = rawProp.split('@')[0];
        const component = path(idPath, layout);
        const element = Registry.resolve(component);

        // note: Flow components do not have propTypes, so we can't validate.
        if (element && element.propTypes && !element.propTypes[prop]) {
            // look for wildcard props (ie data-* etc)
            for (const propName in element.propTypes) {
                const last = propName.length - 1;
                if (
                    propName.charAt(last) === '*' &&
                    prop.substr(0, last) === propName.substr(0, last)
                ) {
                    return;
                }
            }
            const {type, namespace} = component;
            dispatchError('Invalid prop for this component', [
                `Property "${prop}" was used with component ID:`,
                `  ${JSON.stringify(id)}`,
                `in one of the ${cls} items of a callback.`,
                `This ID is assigned to a ${namespace}.${type} component`,
                'in the layout, which does not support this property.',
                tail(callbacks)
            ]);
        }
    }

    function validateIdPatternProp(id, property, cls, callbacks) {
        resolveDeps()(paths)({id, property}).forEach(dep => {