DataView.prototype.getUint16()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since 2015å¹´7æ.
getUint16() 㯠DataView ã¤ã³ã¹ã¿ã³ã¹ã®ã¡ã½ããã§ããã® DataView ã®æå®ããããã¤ããªãã»ãããã 2 ãã¤ããèªã¿åãã符å·ãªã 16 ãããæ´æ°ã¨ãã¦è§£éãã¾ããã¢ã©ã¤ã³ã¡ã³ãå¶ç´ã¯ããã¾ãããå¢çå
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試ãã¦ã¿ã¾ããã
// ArrayBuffer ããã¤ãåä½ã®ãµã¤ãºã§ä½æ
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setUint16(1, 65535); // 符å·ãªã 16 ãããæ´æ°ã®æ大å¤
console.log(view.getUint16(1));
// äºæ³ãããçµæ: 65535
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getUint16(byteOffset)
getUint16(byteOffset, littleEndian)
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byteOffset-
ãã¥ã¼ã®å é ããã®ãã¤ãåä½ã®ãªãã»ããã§ããã¼ã¿ãèªã¿åãä½ç½®ã§ãã
littleEndiançç¥å¯-
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falseã¾ãã¯undefinedã®å ´åãããã°ã¨ã³ãã£ã¢ã³ã®å¤ãèªã¿åããã¾ãã
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æ´æ°ã§ã0 ä»¥ä¸ 65535 以ä¸ã§ãã
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RangeError-
byteOffsetããã¥ã¼ã®æ«å°¾ãè¶ãã¦èªã¿åãããã«è¨å®ããã¦ããå ´åã«çºçãã¾ãã
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getUint16() ã®ä½¿ç¨
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getUint16(1)); // 258
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| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-dataview.prototype.getuint16 |