The more javascript code is produced in SharePoint solutions, the more need we have to log information and possible errors to a central logging place in SharePoint: ULS. This blog post is about logging to ULS from javascript. For a while ago I read a blog post: 5 suggestions to implement a better logging in SharePoint The author @avishnyakov mentions the ability log to ULS from javascript. I want to dive deeper.

Do an unsafe update in a unified manner « Sharepoint. Kunskap. Upptäckter på resan. - Sep 3, 2011 […] Log class is my own class which I presented in my previous post. Like this:GillaBli först att gilla denna […]

Here is a simple log which has been inspired of Android Log. It logs to ULS which you can open with ULSViewer, SharePoint Log Viewer. using System; using Microsoft.SharePoint.Administration; namespace Contoso.Intranet.Portal.Utilities { public class Log { private static readonly string \_CATEGORYNAME = "CONTOSO"; private static readonly SPDiagnosticsCategory \_ERROR\_CATEGORY = new SPDiagnosticsCategory(\_CATEGORYNAME, TraceSeverity.Unexpected, EventSeverity.Error); private static readonly SPDiagnosticsCategory \_WARNING\_CATEGORY = new SPDiagnosticsCategory(\_CATEGORYNAME, TraceSeverity.High, EventSeverity.Warning); private static readonly SPDiagnosticsCategory \_VERBOSE\_CATEGORY = new SPDiagnosticsCategory(\_CATEGORYNAME, TraceSeverity.