Merge pull request #3459 from karprabha/patch-1

Add object comparision method 'deepStrictEqual' in node test module o…

Author: mluukkai

src/content/4/en/part4a.md

@@ -748,6 +748,8 @@ The value returned by the function could be in the following format:
 }
 ```
 
+**NB** when you are comparing objects, the [deepStrictEqual](https://nodejs.org/api/assert.html#assertdeepstrictequalactual-expected-message) method is probably what you want to use, since the [strictEqual](https://nodejs.org/api/assert.html#assertstrictequalactual-expected-message) tries to verify that the two values are the same value, and not just that they contain the same properties. For differences between various assert module functions, you can refer to [this Stack Overflow answer](https://stackoverflow.com/a/73937068/15291501).
+
 Write the tests for this exercise inside of a new <i>describe</i> block. Do the same for the remaining exercises as well.
 
 #### 4.6*: Helper Functions and Unit Tests, step 4