How to decode golang url.QueryEscape data in javascript?

Question

I have a string in JS side which is url.QueryEscaped.

Spaces were replaced with + sign by url.QueryEscape. They don't get converted back to space in decodeURIComponent. Should I manually do a string replace all + with space? What is the right way to decode it?

Maybe this link can help http://stackoverflow.com/questions/13820280/encode-decode-urls — nvcnvn, Feb 01 '14 at 14:09

James Henstridge · Answer 1 · 2017-04-19T01:42:49.320

2

One simple method is to replace all the + characters with spaces prior to decoding. For example:

decodeURIComponent("%2f+%2b".replace(/\+/g, " "))

will correctly decode the string to "/ +". Note that it is necessary to perform the replacement prior to decoding, since there could be encoded + characters in the string.

edited Apr 19 '17 at 01:42

answered Feb 01 '14 at 15:34

James Henstridge

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Thanks, thats what I did, but was wondering if I will miss some other encoded characters like space – Chakradar Raju Feb 03 '14 at 13:13
1

The Go `QueryEscape` function just encodes spaces as plus, and uses percent encoding for other characters not valid in a URL query component. So `replace` and `decodeURIComponent` on the JS side should handle everything. – James Henstridge Feb 03 '14 at 13:27
Just a note, the correct way to do a replace all would be to enclose the search string in a RegExp global modifier like so `decodeURIComponent("%2f+%2b".replace(/\+/g, " "))` – Chris Tomich Apr 16 '17 at 15:28

score 0 · Answer 2 · answered Mar 27 '22 at 17:08

0

If you control Go side, use url.PathEscape and then you can simply use decodeURIComponent without anything extra.

answered Mar 27 '22 at 17:08

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How to decode golang url.QueryEscape data in javascript?

2 Answers2