javascript奇怪的編碼

Question

我越來越奇怪的字符在網頁的腳本。這是腳本的一部分

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這翻譯以一種奇怪的方式提醒（「爲什麼」）。這怎麼可能？

Answer 1

這被稱爲代碼混淆，使用utf-8字符，而不是我們的英文字母。變量具有有效的名稱，通常有函數調用，會做轉換爲通過警報輸出提供英文文本等

看到這裏有一個良好的討論：How can I obfuscate (protect) JavaScript?