Javascript 条件分割

Question

开始吧，我有变量:

var possible_country = 'United States|Germany|Canada|United Kingdom';
var current_country = 'United States';

我想使用这样的条件作为函数

function dummy(c, p){
 var arr = p.split('|');

 /* Code I want */

 if(c === arr[0] || c === arr[1] || c === arr[2] || c === arr[3])
 {
  alert('Voila');
 }
}

所以我可以像这样调用虚拟函数

dummy(current_country, possible_country);

Answer 1

我猜你想要indexOf:

function dummy(c, p){
 var arr = p.split('|');

 if(~arr.indexOf(p)) { // arr contains p as one of its elements
  alert('Voila');
 }
}