Javascript替换不替换

Question

The pattern in this code does not replace the parenthesis. I've also tried "/(|)/g".

var re = "/[^a-z]/g",
   txt = navsel.options[i].text.split(" ")[0], // here I get the text from a select and I split it.
   // What I expect is strings like "(en)" , "(el)" etc
   txt = txt.replace(re," ")

Thanks in advance

Answer 1

Your regex is a string, this will try to replace that exact string. Regex objects don't have quotes around them, just the delimiters. Try it like this:

var re = /[^a-z]/g,
   txt = navsel.options[i].text.split(" ")[0], // here I get the text from a select and I split it.
   txt = txt.replace(re," ");

Answer 2

或者，如果您更喜欢字符串（以及更明确的类型）：

var re = new RegExp("[^a-z]", "g")