arrays - Convert uint8array to double in javascript -


i have arraybuffer , want double values.for example [64, -124, 12, 0, 0, 0, 0, 0] 641.5

any ideas?

you adapt excellent answer of t.j. crowder , use dataview#setuint8 given bytes.

var data =  [64, -124, 12, 0, 0, 0, 0, 0];    // create buffer  var buf = new arraybuffer(8);  // create data view of  var view = new dataview(buf);    // set bytes  data.foreach(function (b, i) {      view.setuint8(i, b);  });    // read bits float/native 64-bit double  var num = view.getfloat64(0);  // done  console.log(num);

for multiple numbers, take chunks of 8.

function getfloat(array) {      var view = new dataview(new arraybuffer(8));      array.foreach(function (b, i) {          view.setuint8(i, b);      });      return view.getfloat64(0);  }    var data =  [64, -124, 12, 0, 0, 0, 0, 0, 64, -124, 12, 0, 0, 0, 0, 0],      = 0,      result = [];    while (i < data.length) {      result.push(getfloat(data.slice(i, + 8)));      += 8;  }    console.log(result);


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