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The function below takes a single parameter, a list of numbers called number_list. Complete the function to return a string of the provided numbers as a series of comma separate values (CSV). For example, if the function was provided the argument [22, 33, 44], the function should return '22,33,44'. Hint: in order to use the join function you need to first convert the numbers into strings, which you can do by looping over the number list to create a new list (via append) of strings of each number.

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teobguan2019

Answer:

The solution code is written in Python 3.

  1. def convertCSV(number_list):
  2.    str_list = []
  4.    for num in number_list:
  5.        str_list.append(str(num))
  6.    
  7.    return ",".join(str_list)
  9. result = convertCSV([22,33,44])
  10. print(result)

Explanation:

Firstly, create a function, convertCSV(), that take one input which is a list of number, number_list. (Line 1)

Next, declare a new string list, str_list. (Line 2)

Use a for-loop to traverse the individual number in the number_list (Line 4) and add each of the number into the str_list. Please note, the individual number is converted to string type using Python str() method. (Line 5)

By now, the str_list should have a list of string type number. We can use join() method to join all the string element in the str_list into a single string and return it as an output. (Line 7) The "," acts as a separator between the element in the str_list.

We can  test the function by passing a random list of number, (e.g. [22,33,44]) and the output shall be '22,33,44'.  (Line 9 - 10)

samuelonum1

In JavaScript, there are two functions that return string representations of an array: join() and toString().

String Representations of Arrays

function convertToString (number_list){
 number_list.join(",")

return number_list

}

In the function above, we do not need to loop through the list to convert the integer array to string array, the join() function is a javaScript method that converts a list of string automatically, having specified the delimiter as a  comma, the function will return a comma separated string of the input

Learn more about arrays here:

https://brainly.com/question/26104158

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