Node.js assert.strictEqual() Method
Example
If two values are not equal (in both value and type), an error is thrown and the program is terminated:
var assert = require('assert');
assert.strictEqual(50, 50); //OK
assert.strictEqual(50,
"50"); /*AssertionError: 50 === '50'
*/
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Definition and Usage
The assert.strictEqual() method tests if two values are equal, using the === operator.
If the two values are not equal, an assertion failure is being caused, and the program is terminated.
The === operator tests if the values are equal and if their types are equal.
To compare the values using the == operator, use the assert.equal() method.
Syntax
assert.strictEqual(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.strictEqual(50, "50", "My message goes here");
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