Skip to main content

5. 7 Summarizing with reduce

 Summarizing with reduce   Understanding Reduce Purpose of Reduce : reduce is a higher-order function used to compute a single value from an array. It's instrumental in operations like summing up numbers or finding an item in an array that meets a specific criterion (e.g., the script with the most characters). Operation : It works by repeatedly taking an element from the array and combining it with a current value until all elements have been processed. This process is akin to folding or reducing the array into a single value. 🎨: Think of reduce like making juice from oranges. You start with a bunch of oranges (the array), and then you squeeze them one by one into a jug (the single value). Your hands (the combining function) do the squeezing, and you might already have some juice in the jug to start with (the start value). 👩‍🎓: The Mechanics of reduce - The reduce function takes three arguments: the array to reduce, a combining function, and a starting value. The combin...

5. 4 Script data set

 Script data set

The provided information describes a data set about scripts, including details such as the name of the script, Unicode ranges assigned to it, writing direction, origin time, current usage status, and a link for more information. Each script is represented by an object in the data set, with the following properties:
  1. Name: The name of the script.
  2. Ranges: An array of Unicode character ranges assigned to the script. Each range is represented by a two-element array containing a lower bound (inclusive) and an upper bound (non-inclusive).
  3. Direction: The direction in which the script is written, represented as "ltr" for left to right, "rtl" for right to left, or "ttb" for top to bottom.
  4. Year: The (approximate) origin time of the script.
  5. Living: A boolean indicating whether the script is still in use.
  6. Link: A link to more information about the script.

 

⚙️: The paragraph introduces the concept of using higher-order functions for data processing, particularly focusing on an example dataset about scripts such as Latin, Cyrillic, or Arabic.

👩‍🎓: Higher-order functions are emphasized as powerful tools for data processing. The text highlights the necessity of having actual data to perform processing tasks effectively.

🎨: Unicode, a system that assigns a unique number to each character in written language, is mentioned as the framework for representing characters in different scripts. The paragraph reveals that out of the 140 different scripts defined in Unicode, 81 are still in use today, while 59 are considered historic.

👩‍🎓: The diversity of writing systems is illustrated with an example of Tamil handwriting. The paragraph further explains that the SCRIPTS binding, accessible in the coding sandbox, contains detailed information about each script, including its name, Unicode ranges, writing direction, origin time, current usage status, and a link for further information.

🎨: Notably, each script object within the dataset is described comprehensively, with details on Unicode ranges, directionality (left-to-right, right-to-left, or top-to-bottom), and historical or contemporary usage.

👩‍🎓: The paragraph hints at the application of higher-order functions such as filter, map, and reduce for analyzing and processing script data based on various criteria such as direction, usage status, or historical period.

Comments