Javascript-检查数组的值[重复]-Javascript-checkarrayforvalue[duplicate]

I have a simple array with bank holidays:

我有一个简单的数组与银行假日:

var bank_holidays = ['06/04/2012','09/04/2012','07/05/2012','04/06/2012','05/06/2012','27/08/2012','25/12/2012','26/12/2012','01/01/2013','29/03/2013','01/04/2013','06/05/2013','27/05/2013'];

I want to do a simple check to see if certain dates exist as part of that array, I have tried:

我想做一个简单的检查，看看某些日期是否作为数组的一部分存在，我试过:

if('06/04/2012' in bank_holidays) { alert('LOL'); }
if(bank_holidays['06/04/2012'] !== undefined) { alert 'LOL'; }

And a few other solutions with no joy, I have also tried replacing all of the forwarded slashes with a simple 'x' in case that was causing issues.

我还尝试过用一个简单的“x”代替所有的斜线，以防出现问题。

Any recommendations would be much appreciated, thank you!

如有任何建议将不胜感激，谢谢!

(edit) Here's a jsFiddle - http://jsfiddle.net/ENFWe/

(编辑)这里有一个jsFiddle—http://jsfiddle.net/ENFWe/

3 个解决方案

if ( bank_holidays.indexOf( '06/04/2012' ) > -1 )

if ( $.inArray( '06/04/2012', bank_holidays ) > -1 )

// this will fix old browsers
if (!Array.prototype.indexOf) {
  Array.prototype.indexOf = function(value) {
    for (var i = 0; i 

for (var i = 0; i