regex to get “words” containing only letters and neglect the combination of letters and numbers

Question

I want to write a RegExpression to select only letters and neglect the combination of both letters and numbers.

Eg:

1 1023 IO1234H ENGINE OIL SERVO 1230 4203 58% 20% 

output :

ENGINE OIL SERVO

Answer 1

You could use this

\b([a-zA-Z])*\b

Test it here

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Explanation