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Add null handling for negative null. Closes #22.

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This commit is contained in:
Edward Shen 2019-08-08 12:58:21 -04:00
parent 2d7803e4e5
commit 9684949a1d
Signed by: edward
GPG key ID: F350507060ED6C90
1 changed files with 4 additions and 2 deletions
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MMM-pages.js
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@ -79,7 +79,9 @@ Module.register('MMM-pages', {
break;
case 'PAGE_DECREMENT':
Log.log('[Pages]: received a notification to decrement pages!');
this.changePageBy(-payload, -1);
// We can't just pass in -payload for situations where payload is null
// JS will coerce -payload to -0.
this.changePageBy(payload ? -payload : payload, -1);
this.updatePages();
break;
case 'DOM_OBJECTS_CREATED':