国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

? ? ????? JS ???? YUP? ??? ?? ??? ??

YUP? ??? ?? ??? ??

Dec 29, 2024 am 03:51 AM

Form validation with YUP

Yup? ???? React?? ?? ??? ??? ??????

? ??????? ??? ? ?? ??? ??? ??? ???? ???? ? ?????. React?? ??? ???? ?????? ??? ??? ?? ??? ?????? ???? ?? ?? ?????! ? ?????? Yup? ???? ??? ??? ?? ??? ??? ??? ??? ?????.


??? ?? ??

? ???? ??? ?? ??? ?? ? ????.

  1. React?? ??? ??? ?? Yup? ?????.
  2. ?? ??? ???? ??? ?????.
  3. ?? CSS? ???? ?? ???? ?????.

?? ??

???? ?? ?? ??? ?????.

  • React? ?? ?? ??
  • ???? Node.js? ???? ????.

1??: ????

?? React ????? Yup? ?????. ????? ?? ??? ?????:

npm install yup

2??: ?? ???

??? ??? ??? ???? ?? ??? ?????. React? useState? ??? ???? ??? ????????.

import React, { useState } from 'react';

function MyForm() {
  const [formData, setFormData] = useState({ name: '', email: '' });
  const [errors, setErrors] = useState({});

  const handleChange = (e) => {
    setFormData({ ...formData, [e.target.name]: e.target.value });
  };

  const handleSubmit = (e) => {
    e.preventDefault();
    // Validation will go here
  };

  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label>Name:</label>
        <input
          type="text"
          name="name"
          value={formData.name}
          onChange={handleChange}
        />
      </div>
      <div>
        <label>Email:</label>
        <input
          type="email"
          name="email"
          value={formData.email}
          onChange={handleChange}
        />
      </div>
      <button type="submit">Submit</button>
    </form>
  );
}

export default MyForm;

3??:

?? ??? ?????. ??? ?? ???? ??? ?? ??? ?? ???? ???????.

import * as Yup from "yup"

const validationSchema = Yup.object({
name: Yup.string().required('Name is required!')
email: Yup.string().email('Your email is invalid').required('email is required')
})

handleSubmit ???? ? ???? ???? ??? ???? ???????

  const handleSubmit = (e) => {
    e.preventDefault();
    try {
    await validationSchema.validate(formData, { abortEarly: false });
    setErrors({});
    alert('Form is valid!');
  } catch (err) {
    const newErrors = {};
    err.inner.forEach((error) => {
      newErrors[error.path] = error.message;
    });
    setErrors(newErrors);
  }
  };

4??: ?? ??? ??

??? ?? ?? ???? ?? CSS ??(MyForm.css)? ??? ?? ???? ?????.

.form-container {
  max-width: 400px;
  margin: 50px auto;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.label {
  font-weight: bold;
}
.input {
  width: 100%;
  padding: 10px;
  margin: 5px 0;
  border-radius: 4px;
}
.error {
  color: red;
  font-size: 12px;
}
.button {
  background: #4caf50;
  color: white;
  padding: 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.button:hover {
  background: #45a049;
}

CSS ??? ????? ????:

import './MyForm.css';

?? ??:

import React, { useState } from 'react';
import * as Yup from 'yup';
import './MyForm.css';

function MyForm() {
  const [formData, setFormData] = useState({ name: '', email: '' });
  const [errors, setErrors] = useState({});

  const validationSchema = Yup.object({
    name: Yup.string().required('Name is required!'),
    email: Yup.string().email('Invalid email!').required('Email is required!'),
  });

  const handleChange = (e) => {
    setFormData({ ...formData, [e.target.name]: e.target.value });
  };

  const handleSubmit = async (e) => {
    e.preventDefault();
    try {
      await validationSchema.validate(formData, { abortEarly: false });
      setErrors({});
      alert('Form is valid!');
    } catch (err) {
      const newErrors = {};
      err.inner.forEach((error) => {
        newErrors[error.path] = error.message;
      });
      setErrors(newErrors);
    }
  };

  return (
    <div className="form-container">
      <h1>Simple Form</h1>
      <form onSubmit={handleSubmit}>
        <div>
          <label className="label">Name:</label>
          <input
            type="text"
            name="name"
            value={formData.name}
            onChange={handleChange}
            className="input"
          />
          {errors.name && <div className="error">{errors.name}</div>}
        </div>
        <div>
          <label className="label">Email:</label>
          <input
            type="email"
            name="email"
            value={formData.email}
            onChange={handleChange}
            className="input"
          />
          {errors.email && <div className="error">{errors.email}</div>}
        </div>
        <button type="submit" className="button">Submit</button>
      </form>
    </div>
  );
}

export default MyForm;

??

Yup? Formik ??? ?? ??? ??? ?? ??? ?????. ? ? ?? ????? React ?? ??? ??? ??? ??? ? ????.

? ??? YUP? ??? ?? ??? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? ????? ??
? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

? AI ??

Undresser.AI Undress

Undresser.AI Undress

???? ?? ??? ??? ?? AI ?? ?

AI Clothes Remover

AI Clothes Remover

???? ?? ???? ??? AI ?????.

Video Face Swap

Video Face Swap

??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

???

??? ??

???++7.3.1

???++7.3.1

???? ?? ?? ?? ???

SublimeText3 ??? ??

SublimeText3 ??? ??

??? ??, ???? ?? ????.

???? 13.0.1 ???

???? 13.0.1 ???

??? PHP ?? ?? ??

???? CS6

???? CS6

??? ? ?? ??

SublimeText3 Mac ??

SublimeText3 Mac ??

? ??? ?? ?? ?????(SublimeText3)

???

??? ??

?? ????
1744
16
Cakephp ????
1596
56
??? ????
1537
28
PHP ????
1396
31
???
JavaScript vs. Java : ?? ??? ??????? JavaScript vs. Java : ?? ??? ??????? Jun 10, 2025 am 12:05 AM

javascriptisIdealforwebDevelopment, whilejavasuitslarge-scaleapplicationsandand development

JavaScript?? ??? ?? ?? : ??? ?? JavaScript?? ??? ?? ?? : ??? ?? Jun 12, 2025 am 10:27 AM

JavaScript?? ?? ?? ?? (//) ?? ?? ?? ?? (//)? ???? ??? ?? ? ???? ?? ??? ?? ????. 1. ??? ??? ??? ?? ?? ?? ??? ??????. 2. ??? ??? ?? ?? ?? ??? ??????. 3. ?? ???? ???? ??????. 4. ???? ??? ?????. 5. ??? ??? ????? ?????? ??? ??????. ??? ?? ???? ???? ??? ???? ?? ??? ?? ? ? ????.

JavaScript? ?? ??? ? ??? : ?? ??? ?? JavaScript? ?? ??? ? ??? : ?? ??? ?? Jun 11, 2025 am 12:04 AM

?, JavaScriptCommentsArenecessaryandshouldEfficively.

Java vs. JavaScript : ??? ????? Java vs. JavaScript : ??? ????? Jun 20, 2025 am 12:27 AM

Java ? JavaScript? ?? ?? ????? ??? ?? ?? ?? ???? ????? ?????. Java? ??? ? ??? ?????? ??? ???? JavaScript? ?? ? ??? ??? ?????.

JavaScript ?? : ?? ?? JavaScript ?? : ?? ?? Jun 19, 2025 am 12:40 AM

JavaScriptCommentsareEnsentialformaining, ?? ? ???? 1) Single-LinecommentsERUSEDFORQUICKEXPLANATIONS.2) Multi-linecommentSexplaincleClexLogicOrprovidedEdeDDocumentation.3) inlineecommentsClarifySpecificPartSofcode.bestPractic

JavaScript ?? ??? ? : ??? ? ??? JavaScript ?? ??? ? : ??? ? ??? Jun 14, 2025 am 12:11 AM

CommentAreCrucialInjavaScriptFormainingClarityandFosteringCollAboration.1) 1) thehelpindebugging, onboarding ? undervestandingStandingCodeevolution.2) awithy-linecommentsforquickexplanationsandmulti-linecommentsfordeTailedDescriptions.3) BestPricticesInclud

JavaScript ??? ?? : ?? ??? JavaScript ??? ?? : ?? ??? Jun 13, 2025 am 12:10 AM

javascriptassseveralprimitavivedatatatatatypes : ??, ???, ??, ????, null, ??, andbigint, andnon-primitiveTypes like-rucial-writingefficial, numberusesa64-bitformat, leadingtofloating-pointsli

JavaScript vs. Java : ?????? ??? ? ?? JavaScript vs. Java : ?????? ??? ? ?? Jun 20, 2025 am 12:21 AM

JavaScriptIspreferredforwebDevelopment, whithjavaisbetterforlarge-scalebackendsystemsandandandoidapps.1) javascriptexcelsincreatinginteractivewebexperiences withitsdynatureanddommanipulation.2) javaoffersstrongtypingandobject-Orientededededededededededededededededdec

See all articles