将字符串从第二个空格切成特殊字符？

Question

var name_RawString = 'A. John Doe-John (Class of 2010)';

I'm trying to extract a substring occuring after the second space and before ( . In this case: "Doe-John".

So far I've tried:

var GetStr = name_RawString.slice(name_RawString.substr(0, name_RawString.indexOf(' ', name_RawString.indexOf(' ') + 1)), name_RawString.indexOf(' ('));

and

var StrSplit = name_RawString.split(' ');
var GetStr = name_RawString.slice(name_RawString.indexOf(StrSplit[1]) + 1)), name_RawString.indexOf(' ('));

Answer 1

You could give regular expressions a try:

name_RawString.match(/^(?:\S+\s){2}(.+?) \(/)[1];

Or, if You prefer a more verbose solution:

var haystack = 'A. John Doe-John (Class of 2010)';

var firstSpaceIndex = haystack.indexOf(' ');
var secondSpaceIndex = haystack.indexOf(' ', firstSpaceIndex + 1);
var openParenIndex = haystack.indexOf('(');

var needle = haystack.slice(secondSpaceIndex + 1, openParenIndex - 1);