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

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

x.theMethod(5, 6);

---

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

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

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

---

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

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

object.property = "the-value";
print(object.property);

---

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

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

object
  .someProperty
  .otherProperty

---

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

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

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

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

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

print(isDone() ? stuff : otherStuff);

---

(expression_statement
    (function_call
        (identifier)
        (ternary (function_call (identifier)) (identifier) (identifier))))

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

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

---
(expression_statement
  (math_op
    (math_op
      (math_op (identifier))
      (math_op (identifier) (identifier)))
    (math_op
      (identifier)
      (math_op (identifier)))))

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

!a || !(b && c)

---

(expression_statement
    (bool_op
        (bool_op (identifier))
        (bool_op
            (expression (bool_op (identifier) (identifier))))))

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

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

---

(expression_statement (function_call (identifier)
    (bool_op
        (expression (type_op (identifier) (identifier)))
        (expression (rel_op (type_op (identifier)) (string))))))

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

print(x in y)

---
(expression_statement (function_call
    (identifier)
    (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)

---

(expression_statement (function_call (identifier)
    (bool_op
        (member_access (member_access (identifier) (identifier)) (identifier))
        (member_access (member_access (identifier) (identifier)) (identifier)))))