Lexical declaration cannot appear in a single-statement context

[WagnerExpansiva]

Installed product versions

• Visual Studio: Community 2017 v 15.8.1
• This extension: 2.8.391

Description

When using let alone in scope, will get this error (in Chrome) "Uncaught SyntaxError: Lexical declaration cannot appear in a single-statement context"

For example, this code

function TestError() {
    if (true) {
        let k2 = new Object("ss");
    }
}

is being minified as:

function TestError()
{
  if (1)
    let k2 = new Object("ss")
}

so , try to past the above code in chrome / console, and will get the error

Expected behavior

function TestError()
{
  if (1)
    new Object("ss")
}

[SalathielGenese]

I got the same issue with node 11

[a4armaan]

Tools

• Microsoft Visual Studio Community 2019 v 16.6.5
• Bundler & Minifier v 2.8.396

Same issue as described by @WagnerExpansiva in #382

[washamdev]

This problem is still occurring in 2023. Did anyone ever find a fix for it? This only started happening when we changed our tsconfig.json file to "target": "ES6", so TypeScript started using let and const throughout our code, but now minification is broken because we are using this plugin. Are we going to have to switch minification plugins entirely?