Yet Another Useful Set of Swift Extensions

3 min readJan 7, 2021

Hello, let’s start the year 2021 with a lightweight article for you Swift developers around the globe. Together we will check out some useful extensions you can use daily.

By the way, every extension has a usage example. Great news ha?! Yeah, I know.

Drum playing…

Starting with String:

The strikeThrough extension allows us to strike through a given string to be able to use it in our views, like the below example in UILabel:

Our UILabel Output:

2. The toDouble extension converts a given string to Double. Here is an example:

Output:

Second, let’s move to Array:

Let’s shuffle an array:

Output: Shuffled enough right?

Third, let’s check Sequence:

Slicing an array into groups can never be easier. Here is a sample:

Output: As you can see here, a very simple example that is grouped by the repeated value. You can play with it and group an array by Date for example. Go ahead try it on your own.

Now with Double:

Rounding a value with given places:

Output: rounded with 3 as we passed in our argument.

Finally, let’s with Date:

Converting a Date into a string:
- We can use the toDateString() to convert directly a given into a simple date string.
- toTimeString() converts a given Date value into time string.
- Finally, we see the toGiven(DateTimeFormat format: string) this is very useful when you need to pass in a different date format every time.

Output: