tree-sitter/spec/runtime/languages/javascript/operators.txt

==========================================
function calls
==========================================

x.theMethod(5, 6);

---

(program (expression_statement
  (function_call
    (member_access (identifier) (identifier))
    (arguments (number) (number)))))

==========================================
constructor calls
==========================================

var x = new Node(5, new Node(3, null));
new Thing;

---

(program
  (var_declaration (var_assignment
    (identifier)
    (constructor_call (identifier) (arguments
      (number)
      (constructor_call (identifier) (arguments
        (number)
        (null)))))))
  (expression_statement (constructor_call (identifier))))

==========================================
property access with dot notation
==========================================

object.property = "the-value";
object.property;

---

(program
  (expression_statement
    (assignment (member_access (identifier) (identifier)) (string)))
  (expression_statement
    (member_access (identifier) (identifier))))

==========================================
property access across lines
==========================================

object
  .someProperty
  .otherProperty

---

(program (expression_statement
  (member_access
    (member_access (identifier) (identifier))
    (identifier))))

===========================================
dynamic property access
==========================================

object[propertName()] = propertyValue();
object[propertyName()];

---

(program
  (expression_statement
    (assignment
      (subscript_access (identifier) (function_call (identifier) (arguments)))
      (function_call (identifier) (arguments))))
  (expression_statement
    (subscript_access (identifier) (function_call (identifier) (arguments)))))

==========================================
ternary expressions
==========================================

isDone() ? stuff : otherStuff;

---

(program (expression_statement
  (ternary (function_call (identifier) (arguments)) (identifier) (identifier))))

==========================================
mathematical operators
==========================================

a++ + b * c - d / e--

---

(program (expression_statement
  (math_op
    (math_op
      (math_op (identifier))
      (math_op (identifier) (identifier)))
    (math_op
      (identifier)
      (math_op (identifier))))))

==========================================
boolean operators
=========================================

!a || !(b && c)

---

(program (expression_statement
  (bool_op
    (bool_op (identifier))
    (bool_op
      (bool_op (identifier) (identifier))))))

===========================================
type operators
===========================================

(x instanceof Array) || (typeof x === "string")

---

(program (expression_statement
  (bool_op
    (type_op (identifier) (identifier))
    (rel_op (type_op (identifier)) (string)))))

============================================
the 'in' operator
===========================================

print(x in y)

---

(program (expression_statement
  (function_call
    (identifier)
    (arguments (type_op (identifier) (identifier))))))

============================================
assignment operators
============================================

x += 1;
x -= 1;
x *= 2;
x /= 2;

---

(program
  (expression_statement (math_assignment (identifier) (number)))
  (expression_statement (math_assignment (identifier) (number)))
  (expression_statement (math_assignment (identifier) (number)))
  (expression_statement (math_assignment (identifier) (number))))

============================================
property access and operators
============================================

print(x.y.z && a.b.c)

---

(program (expression_statement
  (function_call (identifier)
    (arguments (bool_op
      (member_access (member_access (identifier) (identifier)) (identifier))
      (member_access (member_access (identifier) (identifier)) (identifier)))))))