微妙的javascript執行順序
Posted by admin - 10/09/09 at 12:09:49 上午其實網頁程式設計有好多微妙的小地方阿~
像今天注意到的這個:
首先~有一個test.js檔~內容只有一行如下:
1 | a=8; |
再來~create一個test.htm檔~內容如下:
1 2 3 4 5 | <script> var a=1; document.write(unescape("%3Cscript src='test.js'%3E%3C/script%3E")); alert(a); </script> |
alert出來的數字是多少呢? 是8嗎?
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