Combining Stuff in Google Spreadsheet

Question

I want to accomplish the following:

string = TEST; cell reference = B2, value = ING; RESULT = TESTING

Which of the following options are the best to use:

1. CONCAT: =CONCAT("TEST",B2)
2. & operator: ="TEST" & B2
3. CONCATENATE: =CONCATENATE("TEST", B2)

Answer 1

CONCAT() and & do the same thing, so in that case there isn't a difference between them (just personal preference I suppose)

CONCATENATE() can also be used to join 2 items, however it's typically used to join greater than 2 terms.

Which one is best? I'd say whichever option makes the formula the most readable, in this case I would say CONCAT() only because you can easily identify which function you're running, and the terms "TEST" and B2 are clearly defined as the arguments.