@babel/parser: when I use parseExpression to parse code, I get some errors.

[Losstie]

I want to use parseExpression of @babel/parser to parse some Expression, but I got some SYNTAX_ERROR!

The code looks like this：
const parser = require("@babel/parser"); const code = "const a =2"; parser.parseExpression(code, { sourceType: "module", errorRecovery: true, plugins: ["typescript", "decorators", "jsx"], });
and, I got this error: SYNTAX_ERROR:UnexpectedToken!

Am I using it wrong or is this function just not able to parse this kind of statement?

[liuxingbaoyu]

const is not an Expression but a Statement, please use parse().

[nicolo-ribaudo]

An expression is something that would be valid when wrapped in (...). For example, 1 + 2 is an expression because (1 + 2) is valid code. const a = 1 isn't an expression, because (const a = 1) is not valid JavaScript.

[Losstie]

thanks～