For REST-queries, you should use the SpHttpClient class. JSOM is no longer being maintained, so avoid it for now. For "back-end" (C#-code), CSOM is your only option. I usually deploy some CSOM code ...

In case any other internet wayfarers come by this problem; it's highly likely that this is due to the app-pool user being given the "Act as system" privilege in the Central Admin User Policy for the ...

Unfortunately, it does not appear that UniqueId is supported as a refinable OData property at the moment. You can still filter by it by using a CAML-query however. Here's an example function that just ...

It's a matter of opinion and requirements of course, but at it's current state i would say the modern pages are more than ready to be used in production sites. You can customize them as you've ...

You can specify the database-name when creating the service application through Powershell. To do this, use New-SPProfileServiceApplication with the flag -ProfileDBName. Documentation: https://...

Office UI-fabric is tailored specifically for Office 365 and SharePoint Online. Even if you find another front-end framework that works, you should not expect it to continue working in the future, as ...

It's not possible to have 2 contentdb's attached to a site collection, so you'll need to do something about it. Typically, the most common strategy is to do a little old fashioned cleanup! Archive ...

SharePoint Online is a part of Office 365 and gives you exactly this. More detailed pricing and licensing information can be found here.

Create a SharePoint Framework Extention. More info here: https://docs.microsoft.com/en-us/sharepoint/dev/spfx/extensions/overview-extensions

The Search API will always be the fastest, because of the cache, but won't provide the most recent results, unless you're on-prem and have activated continouous crawl (even then, there will be a ...

Ref. your comment, here's how it works: You resolve suggestions using onResolveSuggestions, i've explained it below. When you've resolved people you want to store them in your state and set them ...

Let me answer your actual question; selectedItems takes an Array<IPersonaProps>.

The modern webpages of SharePoint Online are completely different from the old ones. You no longer have the SP.UI-library available, you don't even have _spPageContextInfo available. You should not ...

In reference to the comments, if you want to upload a document to a SharePoint Online Document Library using Microsoft Graph, you should start with the ListItem endpoint. Note the end of the ...

Although it's possible to do this with client-side code, if you're not yourself a developer, and do not have one on your team, it's not adviseable to take that path. In SharePoint Online you have ...

IMPORTANT: For people reading the answer above, please do not try to edit your registry as the first thing you do. Editing the registry can cause unwanted and damaging side-effects on your system. If ...

Lookup-fields are objects that have properties. If your Country-lookup has a returned field called Title, you must expand it and include the field in the select. Your query would look something like ...