ํ‹ฐ์Šคํ† ๋ฆฌ ๋ทฐ

๋ฌธ์ œ

ํ™”๋ฉด์— ๋žœ๋”๋ง ๋œ ๊ฐ ๋ฆฌ์ŠคํŠธ๋ฅผ ๋ˆ„๋ฅด๋ฉด ํ•ด๋‹น ๋ฆฌ์ŠคํŠธ์˜ ์ƒ์„ธ ํŽ˜์ด์ง€๋กœ ์ด๋™ํ•˜๋Š” ๊ธฐ๋Šฅ์„ ๊ตฌํ˜„ํ•˜๊ธฐ ์œ„ํ•ด ๋‹ค์Œ๊ณผ ๊ฐ™์ด ๊ฐ ๋ฆฌ์ŠคํŠธ์— ๊ณ ์œ  ์•„์ด๋”” ๊ฐ’์„ dataset์— ํ• ๋‹นํ•ด์ฃผ์—ˆ๊ณ  ํ•ด๋‹น id๊ฐ’์„ path query parameter์— ํ• ๋‹นํ•ด์ฃผ์—ˆ๋‹ค.

const LinkPage: FC<LinkPageProps> = ({ itemInfoList }: LinkPageProps) => {
  const navigate = useNavigate();

  const moveToDetailPage = (
    e: React.MouseEvent<HTMLParagraphElement, MouseEvent>
  ) => {
    const id = (e.target as HTMLParagraphElement).dataset.id;
    navigate(`/detail?id=${id}`);
  };

	( ... )

  return (
             <LinkTitle
               data-id={itemInfo.key}
               onClick={moveToDetailPage}
               >
               {itemInfo?.sent ? itemInfo.sent.subject : "๋ฌด์ œ"}
              </LinkTitle>
  );
};

 

ํ•˜์ง€๋งŒ ๋‹ค์Œ๊ณผ ๊ฐ™์ด ํƒ€์ž… ์—๋Ÿฌ๊ฐ€ ๋ฐœ์ƒํ•˜๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•˜์˜€๋‹ค.

'EventTarget' ํ˜•์‹์— 'dataset' ์†์„ฑ์ด ์—†์Šต๋‹ˆ๋‹ค. ts(2339)

 

๋ฌธ์ œํ•ด๊ฒฐ

TypeScript ์ปดํŒŒ์ผ๋Ÿฌ๊ฐ€ ํƒ€์ž…์„ ์‹ค์ œ ๋Ÿฐํƒ€์ž„์— ์กด์žฌํ•  ๋ณ€์ˆ˜์˜ ํƒ€์ž…๊ณผ ๋‹ค๋ฅด๊ฒŒ ์ถ”๋ก ํ•˜๊ฑฐ๋‚˜ ๋„ˆ๋ฌด ๋ณด์ˆ˜์ ์œผ๋กœ ์ถ”๋ก ํ•˜๋Š” ๊ฒฝ์šฐ์— ์œ„์™€ ๊ฐ™์€ ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•œ ๊ฒƒ์ธ๋ฐ, ์ด๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด as ๋ฌธ๋ฒ•์„ ์‚ฌ์šฉํ•˜์˜€๋‹ค.

 

๋‹ค์Œ๊ณผ ๊ฐ™์ด e.target๋Š” p ํƒœ๊ทธ ๊ธฐ๋ฐ˜์ธ ์—˜๋ฆฌ๋จผํŠธ์ด๊ธฐ ๋•Œ๋ฌธ์— type ๊ฐ’์ด HTMLParagraphElement์ด๋ฉฐ, ์•ˆ์ •์ ์œผ๋กœ event.target์˜ ํŠน์ • property์— ์ ‘๊ทผํ•˜๊ธฐ ์œ„ํ•ด as ๊ตฌ๋ฌธ์„ ์‚ฌ์šฉํ•˜์—ฌ ํ•ด๋‹น type์œผ๋กœ ํƒ€์ž… ๋‹จ์–ธ(Type Assertion) ์„ ์„ ์–ธํ•ด ์ฃผ์—ˆ๋‹ค.

 const moveToDetailPage = (
    e: React.MouseEvent<HTMLParagraphElement, MouseEvent>
  ) => {
    const id = (e.target as HTMLParagraphElement).dataset.id;
    navigate(`/detail?id=${id}`);
  };

 

Reference

https://stackoverflow.com/questions/42066421/property-value-does-not-exist-on-type-eventtarget

 

Property 'value' does not exist on type 'EventTarget'

I am using TypeScript Version 2 for an Angular 2 component code. I am getting error "Property 'value' does not exist on type 'EventTarget'" for below code, what could be the solution. Tha...

stackoverflow.com

 

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