22 lines
606 B
JavaScript
22 lines
606 B
JavaScript
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'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $Uint8Array = GetIntrinsic('%Uint8Array%', true);
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var $Uint32Array = GetIntrinsic('%Uint32Array%', true);
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var typedArrayBuffer = require('typed-array-buffer');
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var uInt32 = $Uint32Array && new $Uint32Array([0x12345678]);
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var uInt8 = uInt32 && new $Uint8Array(typedArrayBuffer(uInt32));
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module.exports = uInt8
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? uInt8[0] === 0x78
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? 'little'
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: uInt8[0] === 0x12
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? 'big'
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: uInt8[0] === 0x34
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? 'mixed' // https://developer.mozilla.org/en-US/docs/Glossary/Endianness
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: 'unknown' // ???
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: 'indeterminate'; // no way to know
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