How to search through the elements of a list?

Question

JavaScript

there is a list (ul), with a bunch of elements (li).
you need to do a search on the elements in this list. those. we enter characters (word) into the input, the script after entering at least one character (or suppose three characters, how to set it?) starts searching through the elements of the list and if it finds the entered word in some element / elements, then all elements where the desired the word was not found - hide (display non).

please tell me how it can be done :)

Answer 1

https://codepen.io/anon/pen/XZbJzN?editors=1010