script.createCachedData()

创建可与 Script 构造函数的 cachedData 选项一起使用的代码缓存。 返回 Buffer。 此方法可以随时调用任意次数。

• Returns: <Buffer>

Creates a code cache that can be used with the Script constructor's cachedData option. Returns a Buffer. This method may be called at any time and any number of times.

const script = new vm.Script(`
function add(a, b) {
  return a + b;
}

const x = add(1, 2);
`);

const cacheWithoutX = script.createCachedData();

script.runInThisContext();

const cacheWithX = script.createCachedData();