You could adapt the excellent answer of T.J. Crowder and use DataView#setUint8
for the given bytes with DataView#getInt32
and an indicator for littleEndian.
var data = '7F02AAF7'.match(/../g);
// Create a buffer
var buf = new ArrayBuffer(4);
// Create a data view of it
var view = new DataView(buf);
// set bytes
data.forEach(function (b, i) {
view.setUint8(i, parseInt(b, 16));
});
// get an int32 with little endian
var num = view.getInt32(0, 1);
console.log(num);
Node can do that pretty easily using buffers:
Buffer.from('7F02AAF7', 'hex').readInt32LE()
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