为什么不decodeURI(“a + b”)==“a b”? [英] Why doesn't decodeURI("a+b") == "a b"?
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问题描述
我正在尝试在Ruby中编码URL并使用Javascript对其进行解码。但是,正字符给我带来了奇怪的行为。
I'm trying to encode URLs in Ruby and decode them with Javascript. However, the plus character is giving me weird behavior.
在Ruby中:
[Dev]> CGI.escape "a b"
=> "a+b"
[Dev]> CGI.unescape "a+b"
=> "a b"
到目前为止一切顺利。但是Javascript怎么样?
So far so good. But what about Javascript?
>>> encodeURI("a b")
"a%20b"
>>> decodeURI("a+b")
"a+b"
基本上我需要一个在Javascript和Ruby中以相同方式编码/解码URL的方法。
Basically I need a method of encoding / decoding URLs that works the same way in Javascript and Ruby.
编辑: decodeURIComponent
不是更好:
>>> encodeURIComponent("a b")
"a%20b"
>>> decodeURIComponent("a+b")
"a+b"
推荐答案
您可能需要查看 URI.encode
和 URI.decode
:
require 'uri'
URI.encode('a + b') # => "a%20+%20b"
URI.decode('a%20+%20b') # => "a + b"
我经常使用的替代品 可寻址:: URI
:
An alternate, that I use a lot, is Addressable::URI
:
require 'addressable/uri'
Addressable::URI.encode('a + b') #=> "a%20+%20b"
Addressable::URI.unencode('a%20+%20b') #=> "a + b"
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