Node.js assert.notStrictEqual() Method
Example
If two values are equal (both in value and type), an error is thrown and the program is terminated:
var assert = require('assert');
assert.notStrictEqual(50, 70); //OK
assert.notStrictEqual(50,
"50"); //OK
assert.notStrictEqual(50,
50); /*AssertionError: 50 != 50
*/
Run example »
Definition and Usage
The assert.notStrictEqual() method tests if two values are NOT equal, using the !== operator.
If the two values are equal, an assertion failure is being caused, and the program is terminated.
The !== operator tests if the values and the types are equal.
To compare the values using the != operator, use the assert.notEqual() method.
Syntax
assert.notStrictEqual(value1, value2, message);
Parameter Values
| Parameter | Description |
|---|---|
| value1 | Required. Specifies the first value to be compared |
| value2 | Required. Specifies the second value to be compared |
| message | Optional. Specifies the error message to be assigned to the AssertionError. If omitted, a default message is assigned |
Technical Details
| Return Value: | None |
|---|---|
| Node.js Version: | 0.1.21 |
More Examples
Example
Using the message parameter:
var assert = require('assert');
assert.notStrictEqual(50, 50, "My message goes here");
Run example »
