TypeError: RegExpPrototypeExec is not a function when using esm loader #1526
Description
Search Terms
RegExpPrototypeExec, ESM
Expected Behavior
It shows no error
Actual Behavior
It shows an error:
(node:9814) ExperimentalWarning: --experimental-loader is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
TypeError: RegExpPrototypeExec is not a function
at defaultGetFormat (/tmp/tsnode-bug/node_modules/ts-node/dist-raw/node-esm-default-get-format.js:50:24)
at defer (/tmp/tsnode-bug/node_modules/ts-node/src/esm.ts:170:7)
at /tmp/tsnode-bug/node_modules/ts-node/src/esm.ts:175:14
at Generator.next (<anonymous>)
at /tmp/tsnode-bug/node_modules/ts-node/dist/esm.js:8:71
at new Promise (<anonymous>)
at __awaiter (/tmp/tsnode-bug/node_modules/ts-node/dist/esm.js:4:12)
at getFormat (/tmp/tsnode-bug/node_modules/ts-node/dist/esm.js:108:16)
at /tmp/tsnode-bug/node_modules/ts-node/src/esm.ts:127:14
at Generator.next (<anonymous>)
Steps to reproduce the problem
const supportsESM = async () => {
try {
// @ts-ignore
await import("data:text/javascript,");
return true;
} catch (error) {
console.error(error);
}
return false;
};
supportsESM();Using node --loader ts-node/esm src/index.ts results in the error above
Minimal reproduction
See https://github.com/SimonSiefke/ts-node-esm-bug
Specifications
ts-node v10.3.1
node v17.0.1
compiler v4.5.0-beta
- ts-node version:
- node version:
- TypeScript version:
- tsconfig.json, if you're using one:
{
"compilerOptions": {
"outDir": "dist",
"target": "ESNext",
"module": "ESNext",
"lib": ["ESNext"]
},
"include": ["src"]
}
- Operating system and version:
Ubuntu 21.04