Set if needed

index.js

export const setPath = ([key, ...next], value, obj) => {
  if (next.length === 0) {
    return {...obj, [key]: value };
  }
  return {...obj, [key]: setPath(next, value, obj[key]) };
};

export const getPath = ([key, ...next], obj) => {
  if (next.length === 0) {
    return obj[key];
  }
  return getPath(next, obj);
}

const isEqual = (a, b) => JSON.stringify(a) === JSON.stringify(b)

export const setPathIfNeeded = (path, value, obj) => {
  const currentValue = getPath(path, obj);

  if (isEqual(currentValue, obj)) return obj;

  return setPath(path, value, obj);
}

export const set = (path, value, obj) => setPath(path.split('.'), value, obj);