Baseline Widely available
éç㪠Atomics.load()
ã¡ã½ããã¯ãé
åå
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// ãã¤ãåä½ã§ãµã¤ãºãæå®ã㦠SharedArrayBuffer ã使
const buffer = new SharedArrayBuffer(16);
const uint8 = new Uint8Array(buffer);
uint8[0] = 5;
// 5 + 2 = 7
console.log(Atomics.add(uint8, 0, 2));
// äºæ³ãããçµæ: 5
console.log(Atomics.load(uint8, 0));
// äºæ³ãããçµæ: 7
æ§æ
Atomics.load(typedArray, index)
弿°
typedArray
æ´æ°ã®åä»ãé
åã§ãã Int8Array
, Uint8Array
, Int16Array
, Uint16Array
, Int32Array
, Uint32Array
, BigInt64Array
, BigUint64Array
ã®ä½ããã§ãã
index
typedArray
ã®ä¸ã§å¤ãèªã¿è¾¼ãä½ç½®ã
æå®ãããä½ç½® (typedArray[index]
) ã«ããå¤ã§ãã
TypeError
typedArray
ã許å¯ãããæ´æ°åã®ãããã§ããªãå ´åã«çºçãã¾ãã
RangeError
index
ã typedArray
ã®ç¯å²ãè¶
ãã¦ããå ´åã«çºçãã¾ãã
load
ã®ä½¿ç¨
const sab = new SharedArrayBuffer(1024);
const ta = new Uint8Array(sab);
Atomics.add(ta, 0, 12);
Atomics.load(ta, 0); // 12
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