Visit Stack Exchange I am working with a Task list in Share Point online.On the new item form, I have a field called 'Due Date' (Internal name: Due Date) which is set to optional and for one of the Flow requirements, I have to keep it optional as upon making it required my existing flow logic will break. S: Again I do not want to leverage OOTB required approach here, need a JS solution please.We have to be very careful here not to get carried away, creating overly aggressive validation that breaks the natural browsing behavior and gets in people’s way.For example, I’ve seen forms where it’s impossible to ) to force the focus to stay inside the field until it’s valid.It just means a bit more convoluted code – we have to get the collections of So there we have it – a simple and non-intrusive enhancement for instant form validation, providing accessible and visual cues to help users complete forms.You can check out a demo below: See the Pen Instant Form Validation by Site Point (@Site Point) on Code Pen.For example, March 30 is a real date, but February 30 doesn’t exist. I stumbled upon this set of Java Script methods that validates dates (including checking for leap years).
* on left window in Java Script step, expand the folder for 'Transform Functions' above the list of input fields.
With more than a decade's professional experience, he is a published author, a frequent blogger and speaker, and an outspoken advocate of standards-based development.
While working on a form validation project recently, I needed a way to validate if a date was actually valid or not.
Once that scripting is implemented, we’re actually only a couple of skips and hops away from a complete polyfill.
Such a script is beyond the scope of this article, but if you wanted to develop it further, all of the basic blocks are there – testing whether a field should be validated, validating a field against a pattern and/or required, and binding trigger events.