将字节数组转换为浮点数

Question

I have a byte array: [93, 156, 244, 63]

I want to convert it to a floating point number, it should be ~9.8.
How exactly would I go about doing this in JS? I am rusty when it comes to bitwise operations.

Thanks in advance.

edit: The array should be [92,209,28,65]

Answer 1

If it is a IEEE754 single precision floating number you might do:

new Float32Array(new Uint8Array([93, 156, 244, 63]).buffer)[0]

But it returns 1.9110218286514282 for the bytes you provided.

And you may see that 1.911... matches those bytes: http://www.binaryconvert.com/result_float.html?decimal=049046057049049048050049056050056054053049052050056050