Câu hỏi phỏng vấn Ruby
Câu hỏi

What are two uses of ranges?

Câu trả lời

Ranges are versatile constructs in programming and data analysis, serving multiple purposes across various contexts. Here are two primary uses of ranges:

  1. Iteration Control in Loops:
    Ranges are commonly used to control iterations in loops, particularly in programming languages like Python. For example, the range() function in Python generates a sequence of numbers, which can be used to execute a loop a specific number of times or to iterate through sequences by indexing. This is particularly useful in scenarios where you need to execute a block of code a predetermined number of times. The range() function allows for specifying start, stop, and step parameters, making it highly versatile for various looping scenarios[1].

  2. Specifying Intervals or Subsets in Data:
    In data analysis and mathematics, ranges are used to specify intervals or subsets of data. This can include defining the bounds of a dataset to be analyzed or specifying the limits within which a particular operation should be performed. For example, in statistical analysis, you might use ranges to define the confidence interv...

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