I have a problem: es-check tries to validate js files inside my node_modules folder. How to ignore that folder?

I have a monorepo, so, I have multiple node_moudles across my repo.

es-check ./src/**/*.mjs:

ES-Check: there were 22 ES version matching errors.

          ES-Check Error:
          ----
          · erroring file: ./src/annotations/annotation.iframe.mjs
          · error: SyntaxError: The keyword 'import' is reserved (1:0)
          · see the printed err.stack below for context
          ----

          SyntaxError: The keyword 'import' is reserved (1:0)

Proposed CLI: es-check --experimental-modules ./src/**/*.mjs or es-check --experimental-modules ./src/index.mjs. The latter points to the main file which import the rest of the app.

https://github.com/dollarshaveclub/es-check/blob/master/index.js#L74-L84 << Set https://github.com/dollarshaveclub/es-check/blob/master/package.json#L40 to >=8 and you can async/await the file reads

Requested Update

It would be handy if es-check could also check all required/imported files as well. I tried to run es-check es5 ./dist/index.js and it said it was no matching errors, but when I included my module in a react-app in complained that one of my dependencies was not in ES5.

Why Is This Update Needed?

To make sure the entire module and not a single file is in ES5.

Are There Examples Of This Requested Update Elsewhere?

Read about references issues here. Provide paragraph text responses to each header.

Requested Update

bugfix

crashes with this source code in file (a.js)

CLI launch: npx es-check es6 a.js

module.exports = async (foo) => alert('foo');

stacktrace

ES-Check: there were 1 ES version matching errors.

          ES-Check Error:
          ----
          · erroring file: a.js
          · error: SyntaxError: Unexpected token (1:29)
          · see the printed err.stack below for context
          ----

          SyntaxError: Unexpected token (1:29)
    at Parser.pp$4.raise (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:2769:13)
    at Parser.pp.unexpected (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:680:8)
    at Parser.pp.semicolon (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:657:64)
    at Parser.pp$1.parseExpressionStatement (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:1127:8)
    at Parser.pp$1.parseStatement (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:851:24)
    at Parser.pp$1.parseTopLevel (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:739:23)
    at Parser.parse (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:550:15)
    at Function.parse (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:572:35)
    at Object.parse (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/acorn/dist/acorn.js:5288:17)
    at globbedFiles.forEach (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/index.js:160:17)
    at Array.forEach (<anonymous>)
    at files.forEach (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/index.js:155:20)
    at Array.forEach (<anonymous>)
    at Command.prog.version.argument.argument.option.option.action [as _action] (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/index.js:144:11)
    at Command._run (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/caporal/lib/command.js:413:40)
    at Program._run (/Users/colch/.npm/_npx/93411/lib/node_modules/es-check/node_modules/caporal/lib/program.js:170:16)

Why Is This Update Needed?

program crashes

Are There Examples Of This Requested Update Elsewhere?

no

Read about references issues here. Provide paragraph text responses to each header.

Version 10 of Node.js (code name Dubnium) has been released! 🎊

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• Replaced the old Node.js version in your .nvmrc with the new one
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If you’re interested in upgrading this repo to Node.js 10, you can open a PR with these changes. Please note that this issue is just intended as a friendly reminder and the PR as a possible starting point for getting your code running on Node.js 10.

Your Greenkeeper Bot 🌴

Requested Update

Expose a JS API so the module can be required and used as a function.

Why Is This Update Needed?

Currently this module is only a CLI tool, but it would be great to use it programatically too.

Are There Examples Of This Requested Update Elsewhere?

n/a

es-check fails if no files found. This is not okay in my case, because I have a variable number of bundled js files, including zero.

Requested Update

update acorn version to latest 6 or 7

Why Is This Update Needed?

Vulnerabilities: Regular Expression Denial of Service

Reproduce:

1. Just run npm audit.

Are There Examples Of This Requested Update Elsewhere?

Nothing

'includes' is es6 grammar , but actually, it pass check.

I run es-check es5 project/**/*.js | grep 'erroring file' multi times in my project

It said:

ES-Check: there were 79 ES version matching errors.
          · erroring file: xxxA.js
          · erroring file: xxxB.js
          · erroring file: xxxC.js

There were always 79 error files in my project, that's ok,
but grep erroring file count seems random, sometimes 63, sometimes 47,
I just can't tell what all those files are.

Also meet this problem while using it in Node (maybe make an incode requirable version as well?)

exec('es-check es5 myFolder', (err, stdout, stderr) => {
    console.log(err)
});

I check your code

I think this issue may be caused by process.exit...
forEach is synchronous but log is not?
So it return before log all the items

and don't use logger.error for everything...
e.g.

logger.error(`ES-Check: there were no ES version matching errors!  🎉`)
// => better
logger.log(`ES-Check: there were no ES version matching errors!  🎉`)

Requested Update

It would be really cool to be able to test your entire code and then see a small status at the bottom: "Your code will run on 95% of all browsers". If you change one feature it will run on 98%.
The data could be compared to caniuse-lite database to see exactly what features are used by browsers.

Why Is This Update Needed?

Just testing against es6 is not enough, some browsers only have partial support. It would be really useful to have exact statistics of where our code will run and what can we do to make it run on even more browsers without using babel, maybe we are just using one weird feature which we can manually replace ourselves.

Are There Examples Of This Requested Update Elsewhere?

I don't think so.

Read about references issues here. Provide paragraph text responses to each header.

I performed the following on my JS directory and got the following response:

What does the error actually mean?
· error: SyntaxError: Invalid number (22:51)

If that is line #, then character in that line, then in my code its point to the last letter of an object key definition...not an a number. Is it a line/char after it has been minified or the line/char from the raw source file?

:\Users\RPO\dev\myap\www\js>es-check --module es6 *.js
S-Check: there were 1 ES version matching errors.

         ES-Check Error:
         ----
         · erroring file: servicesTride.js
         · error: SyntaxError: Invalid number (22:51)
         · see the printed err.stack below for context
         ----

         SyntaxError: Invalid number (22:51)
   at Parser.pp$4.raise (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2769:13)
   at Parser.pp$8.readNumber (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:4997:36)
   at Parser.pp$8.getTokenFromCode (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:4875:17)
   at Parser.pp$8.readToken (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:4633:15)
   at Parser.pp$8.nextToken (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:4624:15)
   at Parser.pp$8.next (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:4581:8)
   at Parser.pp.eat (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:610:10)
   at Parser.pp$3.parsePropertyValue (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2475:12)
   at Parser.pp$3.parseProperty (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2467:8)
   at Parser.pp$3.parseObj (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2413:23)
   at Parser.pp$3.parseExprAtom (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2212:17)
   at Parser.pp$3.parseExprSubscripts (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2074:19)
   at Parser.pp$3.parseMaybeUnary (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:2051:17)
   at Parser.pp$3.parseExprOps (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:1993:19)
   at Parser.pp$3.parseMaybeConditional (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:1976:19)
   at Parser.pp$3.parseMaybeAssign (C:\Users\RPO\AppData\Roaming\npm\node_modules\es-check\node_modules\acorn\dist\acorn.js:1951:19)

Passing --quiet flag doesn't do anything. I'm still getting ES-Check: there were no ES version matching errors! 🎉
(I'm getting it on a file that doesn't work in IE11, but that's another issue...)

Requested Update

If we pass --module, --allow-hash-bang, or --verbose the true value should be implied rather than passed in like it is currently. IE --module true should not be needed, it should just be --module.

Why Is This Update Needed?

Flags are fairly standard for most cli applications, and at first glance it would be tough to understand es-check because these options are flags but you have to pass a true value anyway.

Are There Examples Of This Requested Update Elsewhere?

I think this will have to be fixed upstream before we add it here, unless we want to switch the argument parsing library that we use.
mattallty/Caporal.js#107

Requested Update

Allow validating code written in ES5 EXCEPT module imports/exports.

Why Is This Update Needed?

We're transpiling our code to ES5 but still use ES modules to allow for tree-shaking.
We wanted to make sure our generated code is ES5 with the exception of the module syntax which will be handled by webpack in consuming projects (talking about an internal lib).

We need to somehow ignore import/export syntax while still ES5-check our code, if possible/makes sense to you guys.

Thanks a bunch!

Requested Update

es-check can have a function to tell us the minimum version of all ES versions that allows a file to parse normally.

This can be done by simply testing against all parsers, or by bisection (with es4 singled out of course) in a million years when testing all yearly ES versions becomes uneconomical.

Why Is This Update Needed?

One can use the new feature to determine the approximate compatibility of a piece of code. With #72 in place this would make a great tool for devs.

It can also be used for "dating" a piece of ancient code found in some ancient ruins.

Requested Update

Why Is This Update Needed?

Are There Examples Of This Requested Update Elsewhere?

Read about references issues here. Provide paragraph text responses to each header.

Object.assign was a feature introduced in es6 for copying object's own properties. But, as of es-check version 5.1.0 , I see this check passes for es5 check. Reference

Requested Update

I was asked today if there was a tool to check if the transpiled code was ES5 and I referred to this project but I just checked and es-check es5 ... does not catch Promise from ES2015.

Why Is This Update Needed?

The reason I was asked is that they have continuous issues with bug reports because they forget to add polyfills to their projects. They need an automated way to check which polyfills they are missing from their transpiled code.

Are There Examples Of This Requested Update Elsewhere?

• facebook/relay#690
• facebookarchive/draft-js#1165
• https://stackoverflow.com/questions/49091956/angular5-polyfills-ts-main-ts-is-missing-from-the-typescript-compilation

What exactly ecmaVersion values are valid?

I assume that these are es5 es6 and es2015.

Is that correct?

Any other versions?

UPD: Ok, I see) https://github.com/dollarshaveclub/es-check/blob/master/index.js#L34

The devDependency conventional-changelog-cli was updated from 2.0.5 to 2.0.7.

🚨 View failing branch.

This version is covered by your current version range and after updating it in your project the build failed.

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Your Greenkeeper Bot 🌴

Requested Update

Currently, using es-check foo dist/*.js returns ES-Check: there were no ES version matching errors! 🎉

However you could assume that if the dev mistyped foo instead of es4, he could also mistype se7 instead of es7.
I think es-check should throw an error when it does not recognize a valid ecmaVersion argument (see the default behavior in

Why Is This Update Needed?

Devs that check their ES version do not need to be handled; lets tell them the harsh truth; they made a typo!

Are There Examples Of This Requested Update Elsewhere?

Nope, but issue #40 could have been avoided perhaps?
Specially if when such an error is detected, you could display a usage info with all the possible ecmaVersion.

Requested Update

Find a different solution for the cycle package. The package itself is only one file with two (short) functions with a "public domain" license published to NPM in 2014.

Why Is This Update Needed?

It does not provide a valid LICENSE as part of the project causing CI tools to fail due to not parsing the package.json. It also appears to be abandoned by the maintainer based on this issue from 2018.

Are There Examples Of This Requested Update Elsewhere?

It looks like other packages depend on this facing the same issue as I have.

would be nice instead of having to comb through a 1mb minified file