can't get unicode character to display properly - Javascript and HTML

Question

I'd like to put a unicode up arrow in an html input button that is being generated in Javascript.

These are the codes for the up arrow from unicode-table.com:
Unicode number: U+2191
HTML-code: & #8593; (space between the & and # so you can see the code and not the arrow)

I do have
<charset="utf-8" /> in my head tag in the html file.

I've tried every variation of those two codes I can think of within the <> below and all I get in the browser is the text of the codes I've tried.

Here's the line of code:

upButton.setAttribute("value", "<up arrow code here>");

Answer 1

尝试使用此字符串而不是html转义字符（毕竟这是JavaScript字符串，而不是html文本节点） \↑'

Answer 2

To escape any symbol in JavaScript , use this tool: http://mothereff.in/js-escapes#1%E2%86%91 For your example, '↑' becomes '\↑' .

To escape any symbol in HTML, use this tool: http://mothereff.in/html-entities#%E2%86%91 For your example, ↑ becomes ↑ or ↑ .

Answer 3

尝试在html中使用它： ↑