<html><head><title>JavaScript RegExp</title></head><body><scripttype="text/javascript">
var str = "ab\u0009c";
var pattern = /\u0009/g;
var index = str.search(pattern);
document.write("Test 1 - returned value : " + index);
str = "abc";
index = str.search(pattern);
document.write("<br/>Test 2 - returned value : " + index);
</script></body></html>
HTML
输出
Test 1 - returned value : 2
Test 2 - returned value : -1