2013-10-31 256 views

回答

0
'22222'.split('').map(function(x) { 
    return '<p>'+x+'</p>'; 
}).join(''); 

输出<p>2</p><p>2</p><p>2</p><p>2</p><p>2</p>

+0

谢谢你,请你解释这个函数中x参数是什么? – user1735446

+0

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map – techfoobar

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也map()函数不支持IE8? – user1735446