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TypeError: key.toUpperCase is not a function

See original GitHub issue

I’m getting this error when trying to use latest FullCalendar installed using bower:

TypeError: key.toUpperCase is not a function
    at Locale.longDateFormat (moment.js:2635)
    at formatRange (fullcalendar.js:1564)
    at fc.View.Class.extend.formatRange (fullcalendar.js:7067)
    at fc.View.Class.extend.computeTitle (fullcalendar.js:7032)
    at fc.View.Class.extend.updateTitle (fullcalendar.js:7026)
    at fc.View.Class.extend.setRange (fullcalendar.js:6948)
    at View.extend.setRange (fullcalendar.js:10796)
    at fc.View.Class.extend.setDate (fullcalendar.js:6940)
    at fc.View.Class.extend.displayView (fullcalendar.js:7156)
    at fullcalendar.js:7118

Can someone explain me, why this is happening?

Thank you 👍

Issue Analytics

State:
Created 8 years ago
Reactions:1
Comments:14 (3 by maintainers)

Top GitHub Comments

12reactions

kreiachcommented, Oct 6, 2016

We received the same error after upgrading to the latest version.

Tracked it down to titleFormat. The new version uses a single string with View-Specific Options, while the previous version used View Option Hashes. We needed to change how we were initializing the Calendar.

https://fullcalendar.io/docs/views/View-Specific-Options/ https://fullcalendar.io/docs/views/View_Option_Hash/

The error itself was triggered via moment.js’s longDateFormat function attempting to upper case the Option Hash object.

9reactions

victorcarvalhospcommented, Sep 22, 2016

I’m getting the same error…

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