JSON字符编码与utf8

Question

我有一个使用JSON字符编码的问题。当我调用ajax并通过json_encode()返回对utf8字符串进行编码时，我的密钥世界是'áo'，但是在对其进行编码后返回了'\\ u00c1o'，但是在javascript中，jQuery我想将该字符串与'áo'怎么做（我不想将\\ u00c1o与\\ u00c1o进行比较）

Answer 1

An unicode escape sequence is no different than an UTF-8 character (provided your document and JS are served with UTF-8 encoding).

>>> '\u00c1o' === 'Áo'
<<< true

Note: Strings with different casing are considered different though. You may want to call toLowerCase() or toUpperCase() on both strings for case-insensitive comparison:

>>> '\u00c1o'.toLowerCase() === 'áo'.toLowerCase()
<<< true

Answer 2

The data is interpolated by JS for display and encoded for storage. Thus, '\Áo' == 'Áo' . Note that it does not equal 'áo' , but this does work:

"áo" == "\u00c1o".toLowerCase()