Latin Characters check

Question

there are some similar questions out there, but none that are quite the same or that have an answer that works for me.

I need a javascript function which validates w

Answer 1

One possible way of how it can be done:

if (/[^\u0020-\u007F\u00A0-\u024F\u1E00-\u1EFF]/.test(value)) {
    // non latin characters found
}

The regular expression tests for characters that are not ^ in the set [] of \u0020-\u007F, \u00A0-\u024F, and \u1E00-\u1EFF groups.