What is the name of the effect of the appearance of a word from a set of letters?

Question

Design

Tell me, what is the name of the effect when a word appears from a set of letters "jkashdgkasjhdgkgqwehgol"?
The last time I saw such an effect in a cyberpunk game, there the set of letters in the line changes, some are removed, some change, and after a couple of seconds a readable word appears.

Answer 1

Scrambling or decoding. You can search in rugl for js decode effect for example.