v0.8.40

• Fix TypeScript parameter decorators on class constructors (#734)

  This release fixes a TypeScript translation bug where parameter decorators on class constructors were translated incorrectly. Affected code looks like this:

  class Example {
    constructor(@decorator param: any) {}
  }

  This bug has been fixed. In addition, decorators are no longer allowed on class constructors themselves because they are not allowed in TypeScript.

• Resolve browser entries in package.json with no file extension (#740)

  This fix changes how esbuild interprets the browser field in package.json. It will now remap imports without a file extension to browser map entries without a file extension, which improves compatibility with Webpack. Specifically, a package.json file with "browser": {"./file": "./something.js"} will now match an import of ./file. Previously the package.json file had to contain something like "browser": {"./file.js": "./something.js"} instead. Note that for compatibility with the rest of the ecosystem, a remapping of ./file will counter-intuitively not match an import of ./file.js even though it works fine in the other direction.

• Warning: npm v7 bug may prevent esbuild installation

  This is a warning for people reading these release notes, not a code change. I have discovered a bug in npm v7 where your package-lock.json file can become corrupted such that no postinstall scripts are run. This bug affects all packages with postinstall scripts, not just esbuild, and happens when running npm v7 on a package-lock.json file from npm v6 or earlier. It seems like deleting and regenerating your package-lock.json file is a valid workaround that should get esbuild working again.