JavaScript - Paint tables in the log console

 console.table([2,3,4,5,6]);

┌─────────┬────────┐

│ (index) │ Values │

├─────────┼────────┤

│    0    │   1    │

│    1    │   2    │

│    2    │   3    │

│    3    │   3    │

│    4    │   4    │

│    5    │   5    │

│    6    │   6    │

│    7    │   7    │

└─────────┴────────┘

Bootstrap - Extend link to parent (stretched-link)

 <div class="card" style="width: 18rem;">

  <img src="..." class="card-img-top" alt="...">
  <div class="card-body">
    <h5 class="card-title">Card with stretched link</h5>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
    <a href="#" class="btn btn-primary stretched-link">Go somewhere</a>
  </div>
</div>

https://getbootstrap.com/docs/4.3/utilities/stretched-link/

MongoDB - Remove a field from an array of documents

 db.collection_name.updateOne(

   {"array_of_docs.field_name": {$exists: 1}}, 

   {$unset: {"array_of_docs.$[].field_name": ""}}

);

MacOS - Terminal count the number of files in a directory

 find /path/to/directory -maxdepth 1 -type f | wc -l

MacOS - Add suffix to all files of a given type within a directory

 for f in * ; do mv -- "$f" "01. $f" ; done

MongoDB - Update a field using the value of another field

db.COLLECTION_NAME.updateMany(

{},

[{$set: {

"target_field": "$source_field"

}}]

);

MacOS - List the first few rows of a file in terminal

head -n 120 /path/file.txt