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is-symbol Version Badge

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Is this an ES6 Symbol value?

Example

var isSymbol = require('is-symbol');
assert(!isSymbol(function () {}));
assert(!isSymbol(null));
assert(!isSymbol(function* () { yield 42; return Infinity; });

assert(isSymbol(Symbol.iterator));
assert(isSymbol(Symbol('foo')));
assert(isSymbol(Symbol.for('foo')));
assert(isSymbol(Object(Symbol('foo'))));

Tests

Simply clone the repo, npm install, and run npm test

is-symbol's People

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is-symbol's Issues

Reduce the size of the npm package by limiting the included files

Looks like the files property (https://docs.npmjs.com/files/package.json#files) is not used in package.json to specify the included files, nor is the .npmignore file (https://docs.npmjs.com/misc/developers#keeping-files-out-of-your-package) is being used for blacklisting unwanted files, for the package published to npm.

Would you consider adding either the files property or the .npmignore file, so that the resulting package file would have smaller size?

The current size can be seen when executing the command npm pack (https://docs.npmjs.com/cli/pack).

This issue was create via tawata

Action required: Greenkeeper could not be activated 🚨

🚨 You need to enable Continuous Integration on Greenkeeper branches of this repository. 🚨

To enable Greenkeeper, you need to make sure that a commit status is reported on all branches. This is required by Greenkeeper because it uses your CI build statuses to figure out when to notify you about breaking changes.

Since we didn’t receive a CI status on the greenkeeper/initial branch, it’s possible that you don’t have CI set up yet.
We recommend using:

If you have already set up a CI for this repository, you might need to check how it’s configured. Make sure it is set to run on all new branches. If you don’t want it to run on absolutely every branch, you can whitelist branches starting with greenkeeper/.

Once you have installed and configured CI on this repository correctly, you’ll need to re-trigger Greenkeeper’s initial pull request. To do this, please click the 'fix repo' button on account.greenkeeper.io.

.nvmrc within package

Just wondering what benefit .nvmrc file is within the npm package?
I can understand you want it in your repo, but does it need to be in npm?

An in-range update of covert is breaking the build 🚨

The devDependency covert was updated from 1.1.0 to 1.1.1.

🚨 View failing branch.

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

covert is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details
  • continuous-integration/travis-ci/push: The Travis CI build failed (Details).

Commits

The new version differs by 3 commits.

  • b2f79d7 v1.1.1
  • db3d7f8 Only apps should have lockfiles
  • ffa04cf [Deps] update browserify, coverify, parents, minimist, resolve

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

An in-range update of auto-changelog is breaking the build 🚨


☝️ Important announcement: Greenkeeper will be saying goodbye 👋 and passing the torch to Snyk on June 3rd, 2020! Find out how to migrate to Snyk and more at greenkeeper.io


The devDependency auto-changelog was updated from 1.16.2 to 1.16.3.

🚨 View failing branch.

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

auto-changelog is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details

Commits

The new version differs by 4 commits.

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

An in-range update of eslint is breaking the build 🚨

Version 4.11.0 of eslint was just published.

Branch Build failing 🚨
Dependency eslint
Current Version 4.10.0
Type devDependency

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

eslint is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details
  • continuous-integration/travis-ci/push The Travis CI build could not complete due to an error Details

Release Notes v4.11.0
  • d4557a6 Docs: disallow use of the comma operator using no-restricted-syntax (#9585) (薛定谔的猫)
  • d602f9e Upgrade: espree v3.5.2 (#9611) (Kai Cataldo)
  • 4def876 Chore: avoid handling rules instances in config-validator (#9364) (Teddy Katz)
  • fe5ac7e Chore: fix incorrect comment in safe-emitter.js (#9605) (Teddy Katz)
  • 6672fae Docs: Fixed a typo on lines-between-class-members doc (#9603) (Moinul Hossain)
  • 980ecd3 Chore: Update copyright and license info (#9599) (薛定谔的猫)
  • cc2c7c9 Build: use Node 8 in appveyor (#9595) (薛定谔的猫)
  • 2542f04 Docs: Add missing options for lines-around-comment (#9589) (Clément Fiorio)
  • b6a7490 Build: ensure fuzzer tests get run with npm test (#9590) (Teddy Katz)
  • 1073bc5 Build: remove shelljs-nodecli (refs #9533) (#9588) (Teddy Katz)
  • 7e3bf6a Fix: edge-cases of semi-style (#9560) (Toru Nagashima)
  • e5a37ce Fix: object-curly-newline for flow code (#9458) (Tiddo Langerak)
  • 9064b9c Chore: add equalTokens in ast-utils. (#9500) (薛定谔的猫)
  • b7c5b19 Fix: Correct [object Object] output of error.data. (#9561) (Jonathan Pool)
  • 51c8cf0 Docs: Disambiguate definition of Update tag (#9584) (Jonathan Pool)
  • afc3c75 Docs: clarify what eslint-config-eslint is (#9582) (Teddy Katz)
  • aedae9d Docs: fix spelling in valid-typeof example (#9574) (Maksim Degtyarev)
  • 4c5aaf3 Docs: Fix typo in no-underscore-dangle rule (#9567) (Fabien Lucas)
  • 3623600 Chore: upgrade [email protected] (#9557) (薛定谔的猫)
  • 1b606cd Chore: Remove an indirect dependency on jsonify (#9444) (Rouven Weßling)
  • 4d7d7ab Update: Resolve npm installed formatters (#5900) (#9464) (Tom Erik Støwer)
  • accc490 Fix: Files with no failures get "passing" testcase (#9547) (Samuel Levy)
  • ab0f66d Docs: Add examples to better show rule coverage. (#9548) (Jonathan Pool)
  • 88d2303 Chore: Add object-property-newline tests to increase coverage. (#9553) (Jonathan Pool)
  • 7f37b1c Build: test Node 9 on Travis (#9556) (Teddy Katz)
  • acccfbd Docs: Minor rephrase in no-invalid-this. (#9542) (Francisc)
  • 8f9c0fe Docs: improve id-match usage advice (#9544) (Teddy Katz)
  • a9606a3 Fix: invalid tests with super (fixes #9539) (#9545) (Teddy Katz)
  • 8e1a095 Chore: enable a modified version of multiline-comment-style on codebase (#9452) (Teddy Katz)
  • cb60285 Chore: remove commented test for HTML formatter (#9532) (Teddy Katz)
  • 06b491e Docs: fix duplicate entries in changelog (#9530) (Teddy Katz)
  • 2224733 Chore: use eslint-plugin-rulesdir instead of --rulesdir for self-linting (#9164) (Teddy Katz)
  • 9cf4ebe Docs: add .md to link(for github users) (#9529) (薛定谔的猫)
Commits

The new version differs by 35 commits.

  • 1a9a6a5 4.11.0
  • ef4d268 Build: changelog update for 4.11.0
  • d4557a6 Docs: disallow use of the comma operator using no-restricted-syntax (#9585)
  • d602f9e Upgrade: espree v3.5.2 (#9611)
  • 4def876 Chore: avoid handling rules instances in config-validator (#9364)
  • fe5ac7e Chore: fix incorrect comment in safe-emitter.js (#9605)
  • 6672fae Docs: Fixed a typo on lines-between-class-members doc (#9603)
  • 980ecd3 Chore: Update copyright and license info (#9599)
  • cc2c7c9 Build: use Node 8 in appveyor (#9595)
  • 2542f04 Docs: Add missing options for lines-around-comment (#9589)
  • b6a7490 Build: ensure fuzzer tests get run with npm test (#9590)
  • 1073bc5 Build: remove shelljs-nodecli (refs #9533) (#9588)
  • 7e3bf6a Fix: edge-cases of semi-style (#9560)
  • e5a37ce Fix: object-curly-newline for flow code (#9458)
  • 9064b9c Chore: add equalTokens in ast-utils. (#9500)

There are 35 commits in total.

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

An in-range update of tape is breaking the build 🚨

Version 4.7.0 of tape just got published.

Branch Build failing 🚨
Dependency tape
Current Version 4.6.3
Type devDependency

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

As tape is “only” a devDependency of this project it might not break production or downstream projects, but “only” your build or test tools – preventing new deploys or publishes.

I recommend you give this issue a high priority. I’m sure you can resolve this 💪

Status Details
  • continuous-integration/travis-ci/push The Travis CI build could not complete due to an error Details

Commits

The new version differs by 19 commits.

  • 1d0df26 v4.7.0
  • 51597e2 Merge pull request #374 from feross/master
  • b06f914 [Refactor] instead of throwing on undefined.forEach, throw explicitly.
  • dd93216 [Fix] fix spurious "test exited without ending"
  • 1a8e936 [Deps] update glob, resolve
  • 7eb9e36 [Dev Deps] update falafel, js-yaml
  • e030260 [Tests] on node v8; no need for sudo; v0.8 passes now; allow v5/v7/iojs to fail.
  • 4375661 [Tests] npm v5+ breaks on node < v4
  • df48bfa Only apps should have lock files.
  • 35e47e1 [Tests] npm v4.6+ breaks on node < v1
  • dc1ffa5 [Deps] update object-inspect
  • 66519cb [Deps] update resolve
  • e6d4625 [Dev Deps] update concat-stream, js-yaml
  • bdf2b04 tap-min moved to derhuerst/tap-min
  • 8b3a77e [Tests] fix thrower stack in node 0.8

There are 19 commits in total.

See the full diff

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.


Your Greenkeeper Bot 🌴

Version 10 of node.js has been released

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

To see what happens to your code in Node.js 10, Greenkeeper has created a branch with the following changes:

  • Replaced the old Node.js version in your .nvmrc with the new one
  • The new Node.js version is in-range for the engines in 1 of your package.json files, so that was left alone

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.

More information on this issue

Greenkeeper has checked the engines key in any package.json file, the .nvmrc file, and the .travis.yml file, if present.

  • engines was only updated if it defined a single version, not a range.
  • .nvmrc was updated to Node.js 10
  • .travis.yml was only changed if there was a root-level node_js that didn’t already include Node.js 10, such as node or lts/*. In this case, the new version was appended to the list. We didn’t touch job or matrix configurations because these tend to be quite specific and complex, and it’s difficult to infer what the intentions were.

For many simpler .travis.yml configurations, this PR should suffice as-is, but depending on what you’re doing it may require additional work or may not be applicable at all. We’re also aware that you may have good reasons to not update to Node.js 10, which is why this was sent as an issue and not a pull request. Feel free to delete it without comment, I’m a humble robot and won’t feel rejected 🤖


FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

Dependency Dashboard

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

Warning

These dependencies are deprecated:

Datasource Name Replacement PR?
npm aud Unavailable

Pending Approval

These branches will be created by Renovate only once you click their checkbox below.

  • [Deps] Update Update eslint to v8.57.0
  • [Deps] Update Update aud to v3
  • [Deps] Update Update eslint to v9
  • [Deps] Update Update nyc to v17
  • 🔐 Create all pending approval PRs at once 🔐

Detected dependencies

github-actions
.github/workflows/node-aught.yml
.github/workflows/node-pretest.yml
.github/workflows/node-tens.yml
.github/workflows/rebase.yml
.github/workflows/require-allow-edits.yml
npm
package.json
  • has-symbols ^1.0.3
  • @ljharb/eslint-config ^21.0.0
  • aud ^2.0.1
  • auto-changelog ^2.4.0
  • eslint =8.8.0
  • has-tostringtag ^1.0.0
  • in-publish ^2.0.1
  • npmignore ^0.3.0
  • nyc ^10.3.2
  • object-inspect ^1.12.2
  • safe-publish-latest ^2.0.0
  • tape ^5.6.1
  • node >= 0.4
nvm
.nvmrc

  • Check this box to trigger a request for Renovate to run again on this repository

An in-range update of @ljharb/eslint-config is breaking the build 🚨

The devDependency @ljharb/eslint-config was updated from 13.0.0 to 13.1.0.

🚨 View failing branch.

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

@ljharb/eslint-config is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details
  • continuous-integration/travis-ci/push: The Travis CI build failed (Details).

Commits

The new version differs by 5 commits.

  • 2dd67e5 v13.1.0
  • 34a402a [Minor] update config and require eslint v5.11
  • fd1f310 [Dev Deps] update eslint, replace, safe-publish-latest, semver
  • 2d1a944 [Tests] use npm audit instead of nsp
  • a02c14b [Tests] up to node v11.6, v10.15, v8.15, v6.16

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

An in-range update of eslint is breaking the build 🚨

The devDependency eslint was updated from 5.12.0 to 5.12.1.

🚨 View failing branch.

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

eslint is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details
  • continuous-integration/travis-ci/push: The Travis CI build failed (Details).

Release Notes for v5.12.1
  • eb5c401 Chore: use meta.messages in some rules (2/4) (refs #9870) (#10773) (薛定谔的猫)
  • aa56247 Fix: avoid loading core rules dynamically from FS in Linter (#11278) (Peter Metz)
  • 04450bb Docs: clarify process for adding committers (#11272) (Kai Cataldo)
  • 3ffcf26 Docs: add @g-plane as committer (#11277) (Kai Cataldo)
  • c403445 Fix: warn constant on RHS of || in no-constant-condition (fixes #11181) (#11253) (Merlin Mason)
  • 9194f45 Fix: Manage severity of 1 with TAP reporter (fixes #11110) (#11221) (Gabriel Cousin)
  • 000f495 Docs: fix example for sort-imports ignoreDeclarationSort (#11242) (Remco Haszing)
  • 7c0bf2c Docs: Add npx usage to Getting Started guide (#11249) (eyal0803)
  • da9174e Docs: fixes typo peerDepencies (#11252) (Christian Kühl)
  • 9c31625 Docs: Improve custom formatter docs (#11258) (Nicholas C. Zakas)
Commits

The new version differs by 12 commits.

  • faf3c4e 5.12.1
  • 1010c98 Build: changelog update for 5.12.1
  • eb5c401 Chore: use meta.messages in some rules (2/4) (refs #9870) (#10773)
  • aa56247 Fix: avoid loading core rules dynamically from FS in Linter (#11278)
  • 04450bb Docs: clarify process for adding committers (#11272)
  • 3ffcf26 Docs: add @g-plane as committer (#11277)
  • c403445 Fix: warn constant on RHS of || in no-constant-condition (fixes #11181) (#11253)
  • 9194f45 Fix: Manage severity of 1 with TAP reporter (fixes #11110) (#11221)
  • 000f495 Docs: fix example for sort-imports ignoreDeclarationSort (#11242)
  • 7c0bf2c Docs: Add npx usage to Getting Started guide (#11249)
  • da9174e Docs: fixes typo peerDepencies (#11252)
  • 9c31625 Docs: Improve custom formatter docs (#11258)

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

An in-range update of tape is breaking the build 🚨

The devDependency tape was updated from 4.9.1 to 4.9.2.

🚨 View failing branch.

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

tape is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details
  • continuous-integration/travis-ci/push: The Travis CI build failed (Details).

Commits

The new version differs by 11 commits.

  • a1e8f7e v4.9.2
  • 4b9c951 [Dev Deps] update eslint, eclint
  • 9ced991 [Fix] notEqual and notDeepEqual show "expected" value on failure
  • 75c467e [Docs] Updated readme to make test, test.only and test.skip consistent.
  • 1225d01 Merge pull request #450 from axelpale/patch-1
  • f53e3f1 Clarify doesNotThrow parameters
  • 96de340 Adding tap-junit
  • b1df632 [readme] Change broken image to use web archive
  • 5f1c5a2 [Docs] cleanup from #439
  • 6c633d0 Merge pull request #439 from abelmokadem/master
  • 4337f58 Convert list of tap reporters to links

See the full diff

FAQ and help

There is a collection of frequently asked questions. If those don’t help, you can always ask the humans behind Greenkeeper.


Your Greenkeeper Bot 🌴

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