Alteryx Foundation Micro-Credential Practice Exam

Which function is used to replace all instances of a target string with a replacement string?

1. ReplaceFirst()

2. Replace()

3. ReplaceChar()

4. ReplaceAll()

The correct answer is: Replace()

The function used to replace all instances of a target string with a replacement string is the Replace() function. This method is specifically designed to scan through a given text and find every occurrence of a specified substring, subsequently substituting each one with a new string. For instance, if you have the string "The cat sat on the mat" and you wish to replace "cat" with "dog", using the Replace() function would allow you to achieve this seamlessly, resulting in "The dog sat on the mat". This ability to replace every instance makes it particularly effective for string manipulation tasks in data transformation workflows. In contrast, other functions mentioned have different purposes: ReplaceFirst() replaces only the first occurrence of a string; ReplaceChar() typically operates at the character level, dealing with single character substitutions rather than entire substrings; and ReplaceAll() may suggest expansive functionality but is not the defined function name in Alteryx for this specific replacement task. Thus, understanding the specific capabilities and definitions of each function clarifies why Replace() is the appropriate choice for this operation.