Add textobject for javascript

[erasin]

Fix #3177

[the-mikedavis]

To fix the docs CI, you'll need to run cargo xtask docgen and commit the changes

[axin]

You have forgotten about generator functions and class expressions:

(generator_function_declaration
  body: (_) @function.inside) @function.around

(class
  (class_body) @class.inside) @class.around

[David-Else]

Thanks for this! Can we get all of: https://github.com/nvim-treesitter/nvim-treesitter-textobjects/blob/master/queries/javascript/textobjects.scm ? (Sorry I don't really know the technical details of this matter)

[the-mikedavis]

It looks like this already covers the textobjects from nvim-treesitter which are implemented in helix (i.e. not ones like conditional or loop)

[erasin]

this is my test file,

• comment
• function
• arguments
• class
  • interface (ts)
  • type (ts)

// js

// function
function a() { }
function b(b1) { }
export function c() { }
const d = function() { }
const e = {
  f1: function(c, d) { },
  f2: () => { }
}
const f1 = (a) => { }
const f2 = () => { () => { }; }
const f3 = f1(() => { })
const f4 = x => x + 1

// class
class A {
  constructor() { }
  tes1(a, b = 1) { }
}

export class B { }
const C = class { }

// ts 

interface I1 {
  s: string
  b: boolean
  (b: boolean): string
}

type T2 = {
  s: string
  b: boolean
  f: () => void
}

class D implements I1 {

  constructor(s: string, b: boolean) {
    this.s = s
    this.b = b
  }

  s: string
  b: boolean

  f(b: boolean): string {
    return b ? "ok": ""
  }
}

[the-mikedavis]

These look great, thanks for working on this!