Javascript: Only allow one blank line between blocks and at EOF

[lijunle]

Currently, the style.js enforces at most two lines:

// disallow multiple empty lines
'no-multiple-empty-lines': [2, {'max': 2}],

Should this follow this suggestion to enforce the max blank line to only 1?

Besides, this will affect the allowed blank line at the end of the file, too.

[lijunle]

Close it. It has been enforced by this commit.

[Ganonside]

That change throws the following error:

Error: eslint-config-airbnb/rules/style: Configuration for rule "no-multiple-empty-lines" is invalid: Value "data["1"].maxEOF" has additional properties.

Here's the stack:

Error: eslint-config-airbnb/rules/style:
    Configuration for rule "no-multiple-empty-lines" is invalid:
    Value "data["1"].maxEOF" has additional properties.
Referenced from: eslint-config-airbnb/legacy
Referenced from: eslint-config-airbnb/base
Referenced from: airbnb
Referenced from: /Users/hornerjn/dev/ih-portal/.eslintrc
    at validateRuleOptions (/Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config-validator.js:98:15)
    at /Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config-validator.js:144:13
    at Array.forEach (native)
    at Object.validate (/Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config-validator.js:143:35)
    at loadConfig (/Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config.js:179:19)
    at /Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config.js:207:46
    at Array.reduceRight (native)
    at loadConfig (/Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config.js:191:36)
    at /Users/hornerjn/dev/ih-portal/node_modules/eslint/lib/config.js:207:46
    at Array.reduceRight (native)

When I change the rule back to 'no-multiple-empty-lines': [2, {'max': 2}], everything works fine.

[ljharb]

@Ganonside Perhaps you don't have a new enough version of eslint? What happens if you npm install eslint@latest and then rerun the linter?

[Andreyco]

Actually, this is happening to me as well. 2 different project, 2 different machines.

[Martindelataille]

Same

[ljharb]

@Andreyco @Martindelataille what version of eslint are you using?

[Martindelataille]

@ljharb Sorry. I am using eslint 1.10.3, eslint-config-airbnb 3.3.12, eslint-loader 1.1.0

[ljharb]

@Martindelataille can you point me to a git repo that can reproduce your issue?

[dsernst]

Just starting seeing this same error, haven't updated eslint or eslint-config-airbnb in a while so unclear why this would mysteriously start now.

    "eslint": "^1.10.1",
    "eslint-config-airbnb": "^1.0.0",

This issue is the only result in Google when searching for this error. Unfortunately repo is private.

[paulintrognon]

I'm having the same problem, the error I am getting is:

Error: /path/to/project/node_modules/eslint-config-airbnb/rules/style.js: Configuration for rule "no-multiple-empty-lines" is invalid: Value "data["1"].maxEOF" has additional properties.

Versions:
"eslint": "^2.3.0",
"eslint-config-airbnb": "6.1.0",

I updated to latest and still have the same issue.

[dsernst]

@paulintrognon: If I remember correctly, there was a problem with my editor using globally installed package versions that were very out-of-date. I believe nvm was also making the issue worse by obfuscating my global npm installs.

Once I removed all the old versions that were globally installed, both within nvm node-version-specific directories and outside, the issue went away.

Hope this helps.

[paulintrognon]

@dsernst You're right! I had an outdated eslint version installed globally. I removed it and got rid of the error. Thank you very much!