Can't use ${selectedText} as a optional variable for Tasks

[MohitGhodasara]

• VS Code Version: 1.53.2
• OS Version: Ubuntu 18.4 LTS

I want to create a task that takes either from the selected text or asks for input. something like this

{
  "label": "Blah Blah",
  "type": "shell",
  "command": "echo ${selectedText} || ${input:get-string}",
  "problemMatcher": [],
  "group": "build",
}

but it throws error when text is not selected

Variable ${selectedText} can not be resolved. Make sure to have some text selected in the active editor.

is it possible to get seleted text lenght that we can check conditionally? ${seletedTextLenght} == 0
or by default ${selectedText} return empty string? ${selectedText} == ''

[ArturoDent]

See #92854 and #94060

[alexr00]

Thanks for linking @ArturoDent . Duplicate of #92854, since that's how we'd solve this problem.