Parsing error when using nullish coalescing operators

Issue by DiriectorDoc Saturday Feb 13, 2021 at 03:38 GMT Originally opened as https://github.com/adobe/brackets/issues/15319

Prerequisites

[x] Can you reproduce the problem with Debug -> Reload Without Extensions?
[x] Did you perform a cursory search to see if your bug or enhancement is already reported?
[x] Did you read the Troubleshooting guide?

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Description

There is a syntax error when using nullish coalescing operators

Steps to Reproduce

Create a new .js file
Write these three lines
```
var a,
b = 7,
c = a ?? b;
```
See the error on line 3: ERROR: Parsing error: Unexpected token ?
Similar errors occur when using ??= and ?.

Expected behavior: Nullish coalescing operators are not syntax errors. They have yet to become compatible with all browsers, but most of them support them.

Actual behavior: Because there are actual operators that exist, no error should occur.

Versions

MS Win10 Pro; 10.0.18363 build 18363 Adobe Brackets Release 1.14 build 1.14.2-17770 (release-1.14.2 f71f00acc)

brackets-archive / bracketsIssues