[GH-ISSUE #759] Exception when calling forEachHeading #531

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opened 2026-03-03 01:27:43 +03:00 by kerem · 1 comment

kerem commented

2026-03-03 01:27:43 +03:00

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Originally created by @mrsrhodehum on GitHub (Mar 30, 2023).
Original GitHub issue: https://github.com/DavidAnson/markdownlint/issues/759

Looks like markdownlint-cli2 version 0.6.0 is not compatible with markdownlint-rule-helpers version 0.19.0. When trying to call forEachHeading from a custom markdownlint rule:

"function": function rule(params, onError) {
        forEachHeading(params, (heading) => {

I got the following exception:

Exception has occurred: TypeError: Cannot read properties of undefined (reading 'markdownit')

Originally created by @mrsrhodehum on GitHub (Mar 30, 2023). Original GitHub issue: https://github.com/DavidAnson/markdownlint/issues/759 Looks like markdownlint-cli2 version 0.6.0 is not compatible with markdownlint-rule-helpers version 0.19.0. When trying to call forEachHeading from a custom markdownlint rule: ``` "function": function rule(params, onError) { forEachHeading(params, (heading) => { ``` I got the following exception: `Exception has occurred: TypeError: Cannot read properties of undefined (reading 'markdownit')`

kerem

2026-03-03 01:27:43 +03:00

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kerem commented

2026-03-03 01:27:45 +03:00

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@DavidAnson commented on GitHub (Mar 30, 2023):

I don't understand. If you are getting an exception from custom rule code, why do you think that is an issue with markdownlint-cli2? If the custom rule does not work with the latest version of markdownlint-rule-helpers, it should reference an earlier version in package.json.

@DavidAnson commented on GitHub (Mar 30, 2023): I don't understand. If you are getting an exception from custom rule code, why do you think that is an issue with markdownlint-cli2? If the custom rule does not work with the latest version of markdownlint-rule-helpers, it should reference an earlier version in package.json.

kerem referenced this issue

2026-03-07 20:06:18 +03:00

[GH-ISSUE #531] MD029 ordered list items: combining two modes #2282