typyscript编译async的问题
我用的node是最新的12.xx版本.,已经原生支持async/await了. 我用tsc编译ts的代码,生成的js里面还是带
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
tsconfig里面的target已经设置到了es2020,并没有什么用. 请问能否不然ts转译async还是根本async就是语法糖,就算tsc不转node虚拟机也会转的??
3 回复
➜ test git:(master) ✗ cat test.ts
async function main() {
await Promise.all([])
}
➜ test git:(master) ✗ npx tsc --target esnext test.ts
➜ test git:(master) ✗ cat test.js
async function main() {
await Promise.all([]);
}
应该是你配置错了
