How I can define a variable with extension scope, and the same can be used in task.json.
It's like I can set the value of SelectedAppId variable and the variable I can use in task.json
{
"name": "Debug (Development)",
"type": "chrome",
"request": "launch",
"url": "http://localhost:3000/$(<Config>.<ExtensionName>.<VarialbeName>)",
}
VS Code doesn't provide a way to make arbitrary ${} style variables for tasks.json and launch.json, but your extension can define a setting and reference it as ${config:myExtensionsNewSetting}: https://code.visualstudio.com/docs/editor/variables-reference#_configuration-variables
Alternatively, you can use an environment variable: https://code.visualstudio.com/docs/editor/variables-reference#_environment-variables
You can implement a Command in your extension and register it with a name, e.g. "my_extension_id.variable_name".
Now you can access the command with this syntax: ${command:my_extension_id.variable_name}
For details please see: https://code.visualstudio.com/docs/editor/variables-reference#_command-variables
SelectedAppIddefined? Please give a full example of what you want to configure in which files.