英文:
decodeURI doesn't replace encoding
问题
I'm having an issue decoding a string.
var myText = "test [u0027] test";
myText = myText.replace("[u", "\\u");
myText = myText.replace("]", "")
console.log(decodeURI(myText));
It does not replace the [u by a character. Does anyone have a solution?
英文:
I'm having an issue decoding a string.
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
var myText = "test [u0027] test";
myText = myText.replace("\[u","\\u");
myText = myText.replace("]","")
console.log(decodeURI(myText));
<!-- end snippet -->
It does not replace the by a character. Does anyone have a solution?
答案1
得分: 0
以下是翻译好的内容：
JavaScript代码解释器会解析\u0027语法，并将其转换为一个“真实”的字符串。
这意味着你无法动态构建\u0027，因为"\u"甚至不是一个有效的字符串。
"\\u"是一个有效的字符串，它会被解析为实际的字符串"\u"，但这并不是“魔法”Unicode标记，它只是你看到的样子。
你可以想象一下：
console.log("\u0027");
会被转换为：
console.log("'");
在JavaScript代码（console.log）实际执行之前。
%27语法可以被动态构建，因为它已经是一个真实的字符串：
decodeURI( '%' + '27' )
另外注意：
也许String.fromCodePoint函数对你有用：
String.fromCodePoint( 0x27 )
英文:
The syntax \u0027 is resolved by the Javascript-code interpreter, which converts it into a "real" string.
That means you can not build the \u0027 dynamically, because "\u" is not even a valid string.
"\\u" is a valid string, which gets resolved to the actual string "\u", but that is not the "magic" unicode marker, it's just what you see.
You can imagine it like:
console.log("\u0027");
gets converted to:
console.log("'");
before the javascript code (the console.log) is actually executed.
The %27 syntax can be dynamically built, because it already is a real string:
decodeURI( '%' + '27' )
Also Note:
Maybe the String.fromCodePoint function is useful to you:
String.fromCodePoint( 0x27 )
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