Regular expression for no space at start or end, but allow space in middle but also allow only one char inputs

Question

My RegExp is

/^[A-Za-z ]*$/

Then what should i write to not allow space at start or end, but allow space in middle

Answer 1

This regular expression will match any strings that conform to your original expression that do not have a space at the beginning or end

^(?! )[A-Za-z ]*(?<! )$