Examples might be simplified to improve reading and basic understanding. Gabbie Metheny 33,690 Points Gabbie Metheny . If you want to add a comment in the JSX code, you can use the JavaScript multi-line comment syntax, but if you’re going to add comments in the place where React is excepting a child node, you need to wrap the comments in curly braces. You can put a string between the opening and closing tags and props.children will just be that string. add something?

As we have already seen that, all of the React components have a JSX provides you to write HTML/XML-like structures (e.g., DOM-like tree structures) in the same file where you write JavaScript code, then preprocessor will transform these expressions into actual JavaScript code. This example uses // to prevent execution of one of the code lines: Example //document.getElementById("myH").innerHTML = "My First Page"; …
{/* A JSX comment */} 2. to make it more readable.JavaScript comments can also be used to prevent execution, when Take this basic example: {/* This is a jsx comment */} The code highlighting is a little strange, it actually only grays out the /* */ and the curly braces look normal, but it seems to be working. If anyone is a interesting in working on this (and Comments in JSX are weird and when searching for information, Comments in JSX are weird and when searching for information, it's hard to find a straightforward answer. This is because JSX is just syntactic sugar for function calls and object construction. This is useful for many of the built-in HTML elements. createElement ('h1', {className: 'greeting'}, 'Hello, world! testing alternative code.This example uses a single-line comment before each code line:This example uses a single line comment at the end of each line If you use Sublime Text, I've created a little snippet so you //document.getElementById("myH").innerHTML = "My First Page"; These two examples are identical: const element = (< h1 className = " greeting " > Hello, world! Parser Implementations # acorn-jsx: A fork of acorn.

Just like XML/HTML, JSX tags have a tag name, attributes, and children.Here, we will write JSX syntax in JSX file and see the corresponding JavaScript code which transforms by preprocessor(babel).To use more than one element, you need to wrap it with one container element. Using comments to prevent execution of code is suitable for code testing. Using Comments to Prevent Execution. render {return (