What is the logic in the condition?

Question

JavaScript

Here is a piece of code for the input.

input.addEventListener('keypress', (e)=>{
            if(e.key.match(/[^а-яё 0-9]/ig)){
                e.preventDefault()
            }

It forbids entering Latin letters, but I can not understand this logic. If there is a Russian character - the condition is true and the default action is canceled - that is, the character is not entered. If there is no symbol, respectively, false and the Latin alphabet is written in the input. But it works the other way around. Why?

Answer 1

it works the other way around

because ^