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in Technique[技术] by (71.8m points)

Is there a Scala equivalent for the python enumerate?

I'd like the convienience of

for i, line in enumerate(open(sys.argv[1])):
  print i, line

when doing the following in Scala

for (line <- Source.fromFile(args(0)).getLines()) {
  println(line)
}
question from:https://stackoverflow.com/questions/6486466/is-there-a-scala-equivalent-for-the-python-enumerate

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1 Answer

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by (71.8m points)

You can use the zipWithIndex from Iterable trait:

for ((line, i) <- Source.fromFile(args(0)).getLines().zipWithIndex) {
   println(i, line)
}

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