(:not) - Operators

select a value that fails to meet a condition (complement)

(:not val)

Where:

1. val: condition that must not apply *

Behavior

• Placement matters:
  • (:not (arg _ (obj))) means 'no argument may be an object', while
  • (arg _ (:not (obj))) means 'an argument that is not an object'.

Examples

Find objects that lack a specific property.

(obj (:not (prop error)))

Selects in lines { 1, 3 } but not in { 2 }:

const response1 = { data: users }
const response2 = { data: users, error: null }
const response3 = { status: 'ok' }

---

Locate function calls without any arguments.

(call refresh (:not (arg)))

Selects in lines { 1 } but not in { 2, 3 }:

refresh()
refresh(true)
poll()

---

Find array elements that are not string literals.

(arr (el _ (:not (str))))

Selects in lines { 1, 3 } but not in { 2 }:

const arr1 = [1, 2, 3]
const arr2 = ['a', 'b']
const arr3 = [1, 'a', 2]

---

Arguments

val

1. inherit