jquery字符串拼接

Question

怎么拼接才能没有最后的&

Answer 1

serializestr.substr(0,serializestr.length-2);

Answer 2

var serializestr = '?';

...

serialize += panel.find('select').map(function () {

  return this.getAttribute('name') + '=' + this.value;

}).join('&');

console.log(serializestr);