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@TooTallNate
Created February 10, 2013 20:32
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Get host machine endianness using JavaScript Typed Arrays (polyfill for `os.endianness()` in node.js)
function endianness () {
var b = new ArrayBuffer(4);
var a = new Uint32Array(b);
var c = new Uint8Array(b);
a[0] = 0xdeadbeef;
if (c[0] == 0xef) return 'LE';
if (c[0] == 0xde) return 'BE';
throw new Error('unknown endianness');
}
endianness();
// "LE"
@michau-krakow
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Be careful with this one-line code - you can't blindly trust TypedArray.buffer property: see notes on https://nodejs.org/api/buffer.html#buffer_buf_buffer and https://nodejs.org/api/buffer.html#buffer_buf_byteoffset

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