javascript - 使用 jslint 未转义 '^'

Question

这是我的代码:

/********************************************************** * remove non-standard characters to give a valid html id * **********************************************************/function htmlid(s) { return s.gsub(/[^A-Z^a-z^0-9^\-^_^:^\.]/, ".");}

为什么 jslint 会抛出这个错误？

Lint at line 5 character 25: Unescaped '^'.return s.gsub(/[^A-Z^a-z^0-9^\-^_^:^\.]/, ".");

Answer 1

除了对正则表达式的明显更改外，我建议对函数本身进行以下更改:

function htmlid(s) {
  // prevents duplicate IDs by remembering all IDs created (+ a counter)
  var self = arguments.callee;
  if (!self.cache) self.cache = {};

  var id = s.replace(/[^A-Za-z0-9_:.-]/, "."); // note the dash is at the end!
  if (id in self.cache) id += self.cache[id]++;
  self.cache[id] = 0;

  return id;
}