개발자 도구 Console 창의 prop , 통신상태 관련 질문

[HMR] Waiting for update signal from WDS...

webpackHotDevClient.js:138 src\main\index.js

Line 25:11: img elements must have an alt prop, either with meaningful text, or an empty string for decorative images jsx-a11y/alt-text

Line 30:11: img elements must have an alt prop, either with meaningful text, or an empty string for decorative images jsx-a11y/alt-text

Line 38:19: img elements must have an alt prop, either with meaningful text, or an empty string for decorative images jsx-a11y/alt-text

Line 44:21: img elements must have an alt prop, either with meaningful text, or an empty string for decorative images jsx-a11y/alt-text

printWarnings @ webpackHotDevClient.js:138

1. 하기 사진과 같이 정상적으로 웹페이지가 나오는데,

개발자 도구 Console 탭에 상기와 같은 prop 알람이 나왔습니다.

찾아보니 img 태그를 사용할 때에는 alt 로 각각 설명을 붙여줘야 없어진다고 해서 붙여주었는데 안붙여도 상관이 없는지 궁금합니다.

import React from "react";
import "./index.css";
import axios from "axios";

function MainPage() {
  const [products, setProducts] = React.useState([]);
  React.useEffect(function () {
    axios
      .get(
        "https://1e7fd6e6-d017-438e-8e7a-a64513bada80.mock.pstmn.io/products"
      )
      .then(function (result) {
        const products = result.data.products;
        setProducts(products);
      })
      .catch(function (error) {
        console.error("에러 발생: ", error);
      });
  }, []);

  return (
    <div>
      <div id="header">
        <div id="header-area">
          <img src="images/icons/logo.png" alt="logo" />
        </div>
      </div>
      <div id="body">
        <div id="banner">
          <img src="images/banners/banner1.png" alt="banner" />
        </div>
        <h1>판매되는 상품들</h1>
        <div id="product-list">
          {products.map(function (product, index) {
            return (
              <div className="product-card" key={index}>
                <div>
                  <img
                    className="product-img"
                    src={product.imageUrl}
                    alt="product"
                  />
                </div>
                <div className="product-contents">
                  <span className="prodcut-name">{product.name}</span>
                  <span className="product-price">{product.price}원</span>
                  <div className="product-seller">
                    <img
                      className="product-avatar"
                      src="images/icons/avatar.png"
                      alt="product-avatar"
                    />
                    <span>{product.seller}</span>
                  </div>
                </div>
              </div>
            );
          })}
        </div>
      </div>
      <div id="footer"></div>
    </div>
  );
}

export default MainPage;

2. 통신상태에 대한 값이 작성한 코드에 따르면

통신 실패에 대한 에러발생 문구만 발생하게 되는데,

통신 성공에 대해서는 작성을 안하는건가요?

    axios
      .get(
        "https://1e7fd6e6-d017-438e-8e7a-a64513bada80.mock.pstmn.io/products"
      )
      .then(function (result) {
        const products = result.data.products;
        setProducts(products);
      })
      .catch(function (error) {
        console.error("에러 발생: ", error);
      });
  }, []);

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