How to convert the easeOutQuint function to a different range of values?

Question

JavaScript

I want to use this ease function, but the values ​​do not change from 0 to 1, but from 0 to 0.5 and 0.5 to 1.
How can I redo the formula at the bottom of the page?

https://easings.net/ru#easeOutQuint

Answer 1

Why remake it. Just normalize the number that is passed to it

// t от 0 до 0.5:
easeOutQuint(t * 2);
// t от 0.5 до 1:
easeOutQuint((t - 0.5) * 2);