[英]Dynamically import WebAssembly from variable
It's possible to dynamically import Javascript from a string:可以从字符串中动态导入 Javascript:
const code = "console.log('Hello, world!');"
import("data:text/javascript;base64," + btoa(code));
I have a Uint8Array
containing code compiled to WebAssembly, and I want to dynamically import it in the same way:我有一个Uint8Array
包含编译为 WebAssembly 的代码,我想以相同的方式动态导入它:
import("data:binary/webassembly;base64,..."); // Something like this
You can import WebAssembly code in your imported JavaScript/TypeScript code.您可以在导入的 JavaScript/TypeScript 代码中导入 WebAssembly 代码。
The following uses the example from Using WebAssembly in Deno |以下使用来自在 Deno 中使用 WebAssembly 的示例 | Manual |手册 | Deno :德诺:
const code = `\
const wasmCode = new Uint8Array([
0, 97, 115, 109, 1, 0, 0, 0, 1, 133, 128, 128, 128, 0, 1, 96, 0, 1, 127,
3, 130, 128, 128, 128, 0, 1, 0, 4, 132, 128, 128, 128, 0, 1, 112, 0, 0,
5, 131, 128, 128, 128, 0, 1, 0, 1, 6, 129, 128, 128, 128, 0, 0, 7, 145,
128, 128, 128, 0, 2, 6, 109, 101, 109, 111, 114, 121, 2, 0, 4, 109, 97,
105, 110, 0, 0, 10, 138, 128, 128, 128, 0, 1, 132, 128, 128, 128, 0, 0,
65, 42, 11
]);
const wasmModule = new WebAssembly.Module(wasmCode);
const wasmInstance = new WebAssembly.Instance(wasmModule);
const main = wasmInstance.exports.main as CallableFunction;
console.log(main().toString());
`;
import("data:text/typescript;base64," + btoa(code));
The same can be done using text/javascript
rather than text/typescript
as long as you remove the type cast in the code.只要您删除代码中的类型转换,就可以使用text/javascript
而不是text/typescript
来完成相同的操作。
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