react-mui-auth-page/lib/util/checkvalid.js

React Login/SignUp components Library backed by Material UI for fast Development

const checkValid = (value, setValue, validator) => {
    if (!value.text) {
        setValue(Object.assign(Object.assign({}, value), { error: "This is required" }));
        return false;
    }
    if (typeof validator === "function" && !validator(value.text)) {
        setValue(Object.assign(Object.assign({}, value), { error: "This is invalid" }));
        return false;
    }
    return true;
};
export default checkValid;