By using example of official repo i got this error on running the project

[nomanabid123]

src\charting_library\charting_library.esm.js
Line 77:7: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 88:5: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 123:5: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 190:5: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 300:5: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 302:5: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 309:11: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 357:7: Expected an assignment or function call and instead saw an expression no-unused-expressions
Line 465:1: Expected an assignment or function call and instead saw an expression no-unused-expressions

[timocov]

See #36 (comment)