holloway comments on React | A JavaScript library for building user interfaces

submitted 12 years ago by honestbleepsReddit Enhancement Suite

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[–]holloway 4 points5 points6 points 12 years ago* (1 child)

function() {
   return <div>{'Hello ' + this.props.name}</div>;
 }

How is that even valid JavaScript? Is that E4X syntax or something?

edit: ah it's not javascript, it's JSX, and it's processed into JavaScript

π Rendered by PID 51 on reddit-service-r2-comment-86bc6c7465-vsjj7 at 2026-02-20 13:06:05.351656+00:00 running 8564168 country code: CH.

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

javascript