DataView.prototype.getUint8()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since 2015å¹´7æ.
getUint8() 㯠DataView ã¤ã³ã¹ã¿ã³ã¹ã®ã¡ã½ããã§ããã® DataView ã®æå®ããããã¤ããªãã»ãããã 1 ãã¤ããèªã¿åãã符å·ãªã 8 ãããæ´æ°ã¨ãã¦è§£éãã¾ãã
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// ArrayBuffer ããã¤ãåä½ã®ãµã¤ãºã§ä½æ
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setUint8(1, 255); // æ大ã®ç¬¦å·ãªã 8 ãããæ´æ°
console.log(view.getUint8(1));
// äºæ³ãããçµæ: 255
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js
getUint8(byteOffset)
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byteOffset-
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æ´æ°ã§ã0 ä»¥ä¸ 255 以ä¸ã§ãã
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RangeError-
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getUint8() ã®ä½¿ç¨
js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getUint8(1)); // 1
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| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-dataview.prototype.getuint8 |