Headers: keys() ã¡ã½ãã
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since â¨2017å¹´10æâ©.
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Headers.keys() ã¡ã½ããã¯ããã®ãªãã¸ã§ã¯ãã«å«ã¾ãããã¹ã¦ã®ãã¼ãèªã¿åããã¨ãã§ããã¤ãã¬ã¼ã¿ã¼ãªãã¸ã§ã¯ããè¿ãã¾ãããã¼ã¯æååã§ããã§ãã
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js
keys()
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js
// ãã¹ãç¨ã® Headers ãªãã¸ã§ã¯ããä½æ
const myHeaders = new Headers();
myHeaders.append("Content-Type", "text/xml");
myHeaders.append("Vary", "Accept-Language");
// ãã¼ã表示
for (const key of myHeaders.keys()) {
console.log(key);
}
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content-type vary