---
title: assert
category: Node.js
+layout: 2017/sheet
---
- assert(val)
- assert.equal(actual, expected)
- assert.notEqual(a, e)
+### Assertions
- assert.deepEqual(a, e)
- assert.notDeepEqual(a, e)
+```js
+assert(val)
+assert.equal(actual, expected)
+assert.notEqual(a, e)
+```
- assert.throws(fn)
+```js
+assert.deepEqual(a, e)
+assert.notDeepEqual(a, e)
+```
+
+```js
+assert.throws(fn)
+```
### References