如何在javascript中解码url编码的字符串

Question

I use javascript / jquery to fill dom elements that contain umlauts:

var text1 = "Unser platonisches Internetreich droht in die H%E4nde einer bewaffneten Miliz zu fallen."

$("#quote1 span").html(unescape(text1));

How can I get rid of the url encoding eg "H%E4nde" and use "Hände" instead? I tried

<meta charset="utf-8" />

<meta name="http-equiv" content="Content-type: text/html; charset=UTF-8"/>

<script type="text/javascript" src="js/index.js" charset="utf-8"></script>

But none of them seem to work...

Thanks for help.

Answer 1

That is not UTF-8, that is percent encoding also known as url encoding.

You can use decodeURIComponent() to convert it back before displaying it

$("#quote1 span").html(decodeURIComponent(text1));

Answer 2

Use either of the following built in JavaScript function to decode any encoded text. No need for jquery or any other library.

const text1 = "Unser platonisches Internetreich droht in die H%E4nde einer bewaffneten Miliz zu fallen."

console.log(decodeURI(text1))

console.log(decodeURIComponent(text1))

update: In case you're wondering how to encode, decoded text, you can use another built in JavaScript function like so

console.log(encodeURI(text1))

console.log(encodeURIComponent(text1))