ArrayBuffer.prototype.resizable

Baseline 2024

20247

resizable ArrayBuffer

const buffer1 = new ArrayBuffer(8, { maxByteLength: 16 });
const buffer2 = new ArrayBuffer(8);

console.log(buffer1.resizable);
// : true

console.log(buffer2.resizable);
// : false

resizable undefined maxByteLength resizable true false

resizable

16 8 resizable resizable true

const buffer = new ArrayBuffer(8, { maxByteLength: 16 });

if (buffer.resizable) {
  console.log("Buffer is resizable!");
  buffer.resize(12);
}


ECMAScript 2027 LanguageSpecification # sec-get-arraybuffer.prototype.resizable

ArrayBuffer
ArrayBuffer.prototype.maxByteLength
ArrayBuffer.prototype.resize()

MDN

MDN 20251129

GitHub

ArrayBuffer
1. ArrayBuffer()
1. isView()
1. [Symbol.species]
Object/Function
1. __proto__
2. constructor