DataView.prototype.getFloat64()

Baseline

20157

getFloat64() DataView DataView 8 64

// ArrayBuffer 
const buffer = new ArrayBuffer(16);

const view = new DataView(buffer);
view.setFloat64(1, Math.PI);

console.log(view.getFloat64(1));
// : 3.141592653589793

getFloat64(byteOffset)
getFloat64(byteOffset, littleEndian)

byteOffset
littleEndian: false undefined

RangeError: byteOffset

getFloat64()

const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getFloat64(1)); // 8.20788039913184e-304


ECMAScript 2027 LanguageSpecification # sec-dataview.prototype.getfloat64

JavaScript
DataView
ArrayBuffer
Float64Array

MDN

MDN 202634

GitHub

DataView
1. DataView()
Object/Function
1. __proto__
2. constructor