Can't use special characters with typeahead

[adrianlungu]

OS, browser, uiv version

Mac OS X 10.12.5, Chrome 60, uiv 0.11.6

Which component

Typeahead

Steps to reproduce the problem

Use a special character (*, ?) in the typeahead input

Expected behavior

Show strings that start with or contain the characters

Actual behavior

[Vue warn]: Error in render function: "SyntaxError: Invalid regular expression: /*/: Nothing to repeat"
found in
---> <Typeahead>

[adrianlungu]

I've currently fixed it in a fork by modifying the Highlight function in Typeahead.vue to:

highlight (item) {
        let value = this.itemKey ? item[this.itemKey] : item
        let inputValue = this.inputEl.value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
        return value.replace(new RegExp(`${inputValue}`, this.regexOptions), '<b>$&</b>')
      }

[wxsms]

hi, sry for the late.

Thanks for your solution, if it works as expect, it's welcome to PR this.