@workday/canvas-kit-react/dist/es6/common/lib/utils/deepMerge.js

The parent module that contains all Workday Canvas Kit React components

const isObject = (obj) => obj && typeof obj === 'object';
export function deepMerge(target, source) {
    if (!isObject(target) || !isObject(source)) {
        return source;
    }
    Object.keys(source).forEach(key => {
        const targetValue = target[key];
        const sourceValue = source[key];
        if (Array.isArray(targetValue) && Array.isArray(sourceValue)) {
            target[key] = targetValue.concat(sourceValue);
        }
        else if (isObject(targetValue) && isObject(sourceValue)) {
            target[key] = deepMerge(Object.assign({}, targetValue), sourceValue);
        }
        else {
            target[key] = sourceValue;
        }
    });
    return target;
}