How to use yield keyword in scala and why it is used instead of println

Question

Can anyone explain how to use yield keyword in scala and why it is used instead of println?

Answer 1

Hi,

The yield keyword is used because the result of each for loop iteration is stored in a list (vector) or it collects the list of output and saves it in the vector. Below an example to see the code and its input:

The above is a for loop with yield function and you can see the below code to store the output in a vector form.

Hope it helps!

If you want to know more about Apache Spark Scala, It's highly recommended to go for Apache Spark certification course today.

Thanks!!