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Mastering flat_map in Python with List Comprehension

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Introduction In Python, when working with nested lists or iterables, one common challenge is flattening them into a single list while applying transformations. Many programming languages provide a built-in flatMap function, but Python does not have an explicit flat_map method. However, Python’s powerful list comprehensions offer an elegant way to achieve the same functionality. This article examines implementation behavior using Python’s list comprehensions and other methods. What is flat_map ? Functional programming  flatMap is a combination of map and flatten . It transforms the collection's element and flattens the resulting nested structure into a single sequence. For example, given a list of lists, flat_map applies a function to each sublist and returns a single flattened list. Example in a Functional Programming Language: List(List(1, 2), List(3, 4)).flatMap(x => x.map(_ * 2)) // Output: List(2, 4, 6, 8) Implementing flat_map in Python Using List Comprehension Python’...
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10 Top Unix Disk Space Quiz Questions

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I have listed 10 top Quiz questions on UNIX disk space. These questions help you to understand about disk-related concepts quickly.

Unix Disk Space QUIZ Questions.

Below listed 10 quiz questions help you to know the disk-space related concepts.

1. All devices are considered as files in Unix.

Yes

2. All device files are stored in /etc or in its subdirectories.

No

3. CD-ROM is a character device.

No

4. The printer is a character device.

Yes

5. The minor number represents the type of device.

No

6. The dd command is used for copying data from one medium to another.

Yes

7. The term bs in the dd command stands for block size.

Yes

8. The du utility displays complete information about the usage of disk space by each file and directory.

Yes

9. By default, the du command displays information in terms of 1024-byte blocks.

No

10. The df command reports only the free disk space of the file system installed on our machines.

Yes

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