18 lines
597 B
JavaScript
18 lines
597 B
JavaScript
import { typedView } from './array.js'
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import { assertU8 } from './fallback/_utils.js'
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import * as js from './fallback/hex.js'
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const { toHex: webHex } = Uint8Array.prototype // Modern engines have this
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export function toHex(arr) {
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assertU8(arr)
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if (arr.length === 0) return ''
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if (webHex && arr.toHex === webHex) return arr.toHex()
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return js.toHex(arr)
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}
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// Unlike Buffer.from(), throws on invalid input
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export const fromHex = Uint8Array.fromHex
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? (str, format = 'uint8') => typedView(Uint8Array.fromHex(str), format)
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: (str, format = 'uint8') => typedView(js.fromHex(str), format)
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