Slice notation in Scala?

python scala slice
Emil picture Emil · Oct 14, 2010 · Viewed 13.9k times · Source

Is there something similar to the slice notation in Python in Scala?

I think this is really a useful operation that should be incorporated in all languages.

Answer

Vasil Remeniuk picture Vasil Remeniuk · Oct 14, 2010

Equivalent method in Scala (with a slightly different syntax) exists for all kinds of sequences:

scala> "Hello world" slice(0,4)
res0: String = Hell

scala> (1 to 10) slice(3,5)
res1: scala.collection.immutable.Range = Range(4, 5)

The biggest difference compared to slicing in Python is that start and end indices are mandatory in Scala.

Related questions

How to turn off INFO logging in Spark?

I installed Spark using the AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully. However, I cannot for the …

Read More
How to use JDBC source to write and read data in (Py)Spark?

The goal of this question is to document: steps required to read and write data using JDBC connections in PySpark possible issues with JDBC sources and know solutions With small changes these methods should work with other supported languages including …

Read More
How do I read a parquet in PySpark written from Spark?

I am using two Jupyter notebooks to do different things in an analysis. In my Scala notebook, I write some of my cleaned data to parquet: partitionedDF.select("noStopWords","lowerText","prediction").write.save("swift2d://xxxx.keystone/commentClusters.parquet") I …

Read More