const fs = require('fs');
const base64ArrayBuffer = require('base64-arraybuffer-as');
const imgData = fs.readFileSync(__dirname + './tests/screen.jpg');
const base64 = base64ArrayBuffer(imgData);
// 当然NodeJS下应该使用Buffer.toString('base64');

import * as AsBind from 'as-bind';
AsBind.instantiate(
  // your wasm location
  fetch('./build/optimized.wasm').then(i => i.arrayBuffer()),
).then(async ({ exports }) => {
  const imageData = new Uint8Array([0, 1, 2, 3, 4, 5]);
  const output = exports.base64ArrayBuffer(imageData);
});