[英]javascript bigint to byte array
新的JavaScript原生BigInt
實現描述了一個抽象方法NumberToRawBytes
提出了一種通過顯式字節序創建字節數組的便捷方法:
https://tc39.github.io/proposal-bigint/#sec-typedarrays-and-dataview
js API中已經可以使用它嗎? 例如,JavaScript是否具有一些實現該接口的“數組”接口?
在/ lib下的Typescript中查看lib.esnext.bigint.d.ts文件,我在底部的“接口DataView”中找到了。
我認為這就是您和我想要的!
interface DataView {
/**
* Gets the BigInt64 value at the specified byte offset from the start of the view. There is
* no alignment constraint; multi-byte values may be fetched from any offset.
* @param byteOffset The place in the buffer at which the value should be retrieved.
*/
getBigInt64(byteOffset: number, littleEndian?: boolean): bigint;
/**
* Gets the BigUint64 value at the specified byte offset from the start of the view. There is
* no alignment constraint; multi-byte values may be fetched from any offset.
* @param byteOffset The place in the buffer at which the value should be retrieved.
*/
getBigUint64(byteOffset: number, littleEndian?: boolean): bigint;
/**
* Stores a BigInt64 value at the specified byte offset from the start of the view.
* @param byteOffset The place in the buffer at which the value should be set.
* @param value The value to set.
* @param littleEndian If false or undefined, a big-endian value should be written,
* otherwise a little-endian value should be written.
*/
setBigInt64(byteOffset: number, value: bigint, littleEndian?: boolean): void;
/**
* Stores a BigUint64 value at the specified byte offset from the start of the view.
* @param byteOffset The place in the buffer at which the value should be set.
* @param value The value to set.
* @param littleEndian If false or undefined, a big-endian value should be written,
* otherwise a little-endian value should be written.
*/
setBigUint64(byteOffset: number, value: bigint, littleEndian?: boolean): void;
}
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