Babel Not working for imports from node_modules - babeljs

Question

I just discovered RollUP and I am stuck with an issue where Babel does not run for imports from node_modules.
Here is an example:
My Javascript Code
import { _map } from "#varunsridharan/js-vars"
const myarray = _map.call([1,2,3,4],(x)=> x * 2);
console.log(myarray);
Rollup Config
import { babel } from '#rollup/plugin-babel';
import { nodeResolve } from '#rollup/plugin-node-resolve';
import { uglify } from 'rollup-plugin-uglify';
import filesize from 'rollup-plugin-filesize';
import visualizer from 'rollup-plugin-visualizer';
export default {
input: './src/index.js',
output: {
file: './dist/myfile.min.js',
format: 'iife',
plugins: [
uglify( { mangle: true } ),
]
},
plugins: [
nodeResolve(),
babel(),
filesize(),
visualizer()
]
};
When I run rollup -c in CLI I get this output:
babelHelpers: 'bundled' option was used by default. It is recommended to configure this option explicitly, read more here: https://github.com/rollup/plugins/tree/master/packages/babel#babelhelpers
198 | * Array Related Vars.
199 | */
> 200 | const Arr = Array;
| ^ Unexpected token: keyword «const»
201 | const _Arrayprop = Arr.prototype;
202 | const _filter = _Arrayprop.filter;
203 | const _push = _Arrayprop.push;
[!] (plugin uglify) Error: Unexpected token: keyword «const»
SyntaxError: Unexpected token: keyword «const»
at JS_Parse_Error.get (eval at <anonymous> (E:\localhost\www\javascript\dizzle\node_modules\uglify-js\tools\node.js:18:1), <anonymous>:69:23)
at reportError (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:107:11)
at reportClientError (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:87:10)
at execFunction (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:157:5)
at execHelper (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:139:5)
at execMethod (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:143:5)
at process.<anonymous> (E:\localhost\www\javascript\dizzle\node_modules\jest-worker\build\workers\processChild.js:64:7)
at process.emit (events.js:315:20)
at emit (internal/child_process.js:876:12)
at processTicksAndRejections (internal/process/task_queues.js:85:21)
Based on the output i was able to understand that babel did not run for the imported modules. so i checking the options provided for rollup babel plugin # (https://github.com/rollup/plugins/tree/master/packages/babel) and found that it has include AND exclude options and i tried with the below config
babel( {
include: [ "node_modules/#varunsridharan/*/**", "./src/**" ],
exclude: "node_modules/**",
} ),
Still, nothing happened so I tried without ./src/** in babel include config and found that babel is not running in my main javascript file which imports the node_modules's file
Node Module Project Link: https://github.com/varunsridharan/js-vars