小编Ali*_*qas的帖子

我试图跟踪表单提交以显示循环进度，直到表单提交。

根据 formik 文档，我可以使用 isSubmitting 变量来做到这一点，但我收到错误“未捕获的 ReferenceError：isSubmitting 未定义”

这是用 laravel 作为后端在 reactjs 中编写的

import React, {
    useState,
    useContext,
    useEffect,
    useCallback,
    useMemo
} from "react";
import CircularProgress from "@material-ui/core/CircularProgress";
import axios from "axios";
import {
    makeStyles,
    InputLabel,
    MenuItem,
    FormHelperText,
    FormControl,
    Avatar,
    Select,
    Typography,
    Divider,
    TextField
} from "@material-ui/core";
import SaveIcon from "@material-ui/icons/Save";
import Button from "@material-ui/core/Button";
import { Formik, Field, Form, ErrorMessage } from "formik";
import * as Yup from "yup";

const useStyles = makeStyles(theme => ({
    formControl: {
        marginTop: 16, …