Issue #3265💬 AnsweredOpened February 5, 2021by jcamejo0 reactions

RenderField in traitView does not handle null or undefined

Quick answerby artf

Hi Juan, thanks for the report, yeah actually createInput requires you to return an HTML string or HTMLElement. I think it's good to have errors in cases like that but I guess the error wasn't clear enough. Honestly, I don't know what is the best "fix" here, because checking statically in the code all the API is not a...

Read full answer below ↓

Question

Hi @artf! Working on the editor on one of my custom traits i had an issue where for some reason that is not important, the createInput was returning undefined. I've noticed that the TraitView renderField method does not handle falsey values It when directly to try to append an undefined object, raising an error. Should i add a validation here checking that the object is present or should i do it somewhere else? Should it be the responsibility of createInput to always return a defined object? Thanks!

Answers (3)

artfFebruary 19, 2021

Hi Juan, thanks for the report, yeah actually createInput requires you to return an HTML string or HTMLElement. I think it's good to have errors in cases like that but I guess the error wasn't clear enough. Honestly, I don't know what is the best "fix" here, because checking statically in the code...

WebDevXpertOctober 7, 2021

Hello @artf! Hope you are well. I am having an issue using grapesjs plugin publish s3.. How can i use that plugin and publish my data??

GJSBlockMay 17, 2026

Thanks for reporting this, @jcamejo. The issue with RenderField in traitView does not handle null or undefined appears to be a race condition or state management timing problem. This typically happens when component lifecycle events and DOM modifications overlap, creating an inconsistent state. Wha...

Related Questions and Answers

Continue research with similar issue discussions.

Paid Plugins That Match This Issue

Curated by issue keywords and label relevance to help you ship faster.

View all plugins

Loading paid plugin recommendations...

Free option

Check the open-source GrapesJS plugins on GitHub or run a quick search in our free catalog.

Browse free plugins →
Premium option

Premium plugins ship with support, regular updates, and production-ready features — save days of integration work.

Browse premium plugins →

Related tutorials

In-depth guides on the same topic.

All tutorials →

Browse Plugin Categories

Jump directly to plugin category pages on the marketplace.