Learn Python #4 - The f-string...

Hello everyone today we are going to talk about string manipulation via f-string.

Python over the years has provided many features and one of them is to format the string.

What the f-strings is all about?

f-strings is a literal string interpolation (The way it works in JavaScript -> String literals).

It provides a convenient way to embed the python expressions with ease.

Let us look at the examples:-

• If I want to format a string wherein some of the values are received from a variable employee_name = 'Steve Rogers' and we have to generate a string Steve Rogers is one of the greatest Marvel superheroes then we need to do ->

  f"{employee_name} is one of the greatest Marvel superheroes"
  // Steve Rogers is one of the greatest Marvel superheroes
  

• You can also inject numeric values inside the string

  quantity_bat = 10
  price_bat = 10
  f"The total cost of {price_bat} bats is ${quantity_bat*price_bat}"
  //The total cost of {price_bat} bats is 100
  

• If you want to show the values with a 2 decimal point limit

  quantity_bat = 10.99
  price_bat = 10.234
  f"The total cost of {price_bat} bats is ${quantity_bat*price_bat:,.2f}"
  //output -> 'The total cost of 10.234 bats is $112.47'
  

  In the above example we can decide up to which decimal points we want to show the number

• You want to use double quotes, yes you can do that as well

  number_one = 1
  f"\"{number_one}\" is a odd number"
  // 1 is a odd number
  

Conclusion

f-strings are easy to understand, use and handy when it comes to string interpolation, so do let me know what you guys think of this article💡.

Thanks in advance for reading this article...🚀

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