eslint no-restricted-syntax selector for private methodDefinition

Question

I use eslint on a TypeScript project and have some rule in no-restricted-syntax config that check naming for async method, like :

{
  "selector": "MethodDefinition[value.async=true][key.name!=/Async$/]",
  "message": "Async method name must end in 'Async'"
}

I'm searching for something to verify private function naming. But I can't find a selector to select all private MethodDefinition.

Answer 1

So, I found what I was searching for.

My answer was in this documentation inside AST Playground part.

The playground allow me to see all the node information usable in eslint.

And then I made my own rule to test private function naming (in my case, the name must start with an underscore) :

{
  "selector": "MethodDefinition[accessibility=private][key.name!=/^_/]",
  "message": "Private function name must start with _"
}