A polyfill for ArrayBuffer#dispose

dispose.js

void function () {

if ( 'dispose' in ArrayBuffer.prototype ) return

var blob = new Blob([''], {
    type: 'text/javascript'
})
var url = URL.createObjectURL(blob)
var worker = new Worker(url)
URL.revokeObjectURL(url)

Object.defineProperty(ArrayBuffer.prototype, 'dispose', {
    writable: true,
    enumerable: false,
    value: function () {
        worker.postMessage(this, [this])
    }
})

}()

test.js

var x = new Float32Array(16)
console.log(x.length) // 16
x.buffer.dispose()
console.log(x.length) // 0