How do I format a SharePoint list column input to complete a URL?

[RogueWolf1985]

Hello I am relatively new to SharePoint and JSON code.  I am trying to design a list column so that when a user types in the entry the entry is then automatically converted into a URL.  For example, the input is ProjectName and the final column output is https://company.sharepoint.com/sites/ParentSite/ProjectName. 

Is this:

a) possible?

b) if possible how would I go about being able to do this?

c) can I further format the output to show just the ProjectName but formatted as a hyperlink?

Thank you in advance!

[#2]

Yes it is possible. Check the github columns formatting samples here https://github.com/pnp/sp-dev-list-formatting/tree/master/column-samples/generic-hyperlink-values

[#3 · Accepted solution]

@RogueWolf1985 Yes, this is possible. You can use below JSON code on your ProjectName column:

{
    "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
    "elmType": "a",
    "txtContent": "@currentField",
    "attributes": {
        "target": "_blank",
        "href": "='https://company.sharepoint.com/sites/ParentSite/' + @currentField"
    }
}

Also, if "https://company.sharepoint.com/sites/ParentSite" is the same site where you are adding this JSON code then you can also use "@currentWeb" instead of hard coding the site URL in JSON like below:

{
    "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
    "elmType": "a",
    "txtContent": "@currentField",
    "attributes": {
         "target": "_blank",
         "href": "=@currentWeb + '/' + @currentField"
     }
}

Use column formatting to customize SharePoint 

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[#4]

Perfect! Thank you so much!

[#5]

Thank you for the reference! This will be helpful in the future.

[#6]

Great, glad it worked for you.