diff --git a/content/docs/hello-world.md b/content/docs/hello-world.md index adf4db48d..465eb9819 100644 --- a/content/docs/hello-world.md +++ b/content/docs/hello-world.md @@ -31,4 +31,4 @@ The next few sections will gradually introduce you to using React. We will exami React is a JavaScript library, and so it assumes you have a basic understanding of the JavaScript language. If you don't feel very confident, we recommend [refreshing your JavaScript knowledge](https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript) so you can follow along more easily. -We also use some of the ES6 syntax in the examples. We try to use it sparingly because it's still relatively new, but we encourage you to get familiar with [arrow functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions), [classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes), [template literals](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Template_literals), [`let`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let), and [`const`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const) statements. You can use Babel REPL to check what ES6 code compiles to. +We also use some of the ES6 syntax in the examples. We try to use it sparingly because it's still relatively new, but we encourage you to get familiar with [arrow functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions), [classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes), [template literals](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Template_literals), [`let`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let), and [`const`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const) statements. You can use the [Babel REPL](babel-repl://es5-syntax-example) to check what ES6 code compiles to. diff --git a/content/docs/jsx-in-depth.md b/content/docs/jsx-in-depth.md index 9837958d8..3ba88e390 100644 --- a/content/docs/jsx-in-depth.md +++ b/content/docs/jsx-in-depth.md @@ -47,7 +47,7 @@ React.createElement( ) ``` -If you want to test out how some specific JSX is converted into JavaScript, you can try out [the online Babel compiler](https://babeljs.io/repl/#?babili=false&evaluate=true&lineWrap=false&presets=es2015%2Creact%2Cstage-0&code=function%20hello()%20%7B%0A%20%20return%20%3Cdiv%3EHello%20world!%3C%2Fdiv%3E%3B%0A%7D). +If you want to test out how some specific JSX is converted into JavaScript, you can try out [the online Babel compiler](babel-repl://jsx-simple-example). ## Specifying The React Element Type diff --git a/content/docs/react-without-jsx.md b/content/docs/react-without-jsx.md index e14390095..2c1f0d149 100644 --- a/content/docs/react-without-jsx.md +++ b/content/docs/react-without-jsx.md @@ -38,7 +38,7 @@ ReactDOM.render( ); ``` -If you're curious to see more examples of how JSX is converted to JavaScript, you can try out [the online Babel compiler](https://babeljs.io/repl/#?babili=false&evaluate=true&lineWrap=false&presets=es2015%2Creact%2Cstage-0&code=function%20hello()%20%7B%0A%20%20return%20%3Cdiv%3EHello%20world!%3C%2Fdiv%3E%3B%0A%7D). +If you're curious to see more examples of how JSX is converted to JavaScript, you can try out [the online Babel compiler](babel-repl://jsx-simple-example). The component can either be provided as a string, or as a subclass of `React.Component`, or a plain function for stateless components. diff --git a/content/home/examples/a-simple-component.md b/content/home/examples/a-simple-component.md index 848971921..1157ef2bd 100644 --- a/content/home/examples/a-simple-component.md +++ b/content/home/examples/a-simple-component.md @@ -5,4 +5,4 @@ order: 0 React components implement a `render()` method that takes input data and returns what to display. This example uses an XML-like syntax called JSX. Input data that is passed into the component can be accessed by `render()` via `this.props`. -**JSX is optional and not required to use React.** Try the [Babel REPL](http://babeljs.io/repl#?babili=false&browsers=&build=&builtIns=false&code_lz=MYGwhgzhAEASCmIQHsCy8pgOb2vAHgC7wB2AJjAErxjCEB0AwsgLYAOyJph0A3gFDRoAJ1Jl4wgBQBKPoKEj4hAK7CS0SfIXQAPGQCWANwB8W7XEQo-hABb6I9NsORsHJMC3gBfM0J0B6AxMzaQBueR8ffmpaQgARAHlUelFyCU0_BCQ0DAhsXHdPAF4AIgAVMABPFGES6H9jABp5FmRlEkIAOWRxfjCgA&debug=false&circleciRepo=&evaluate=false&lineWrap=false&presets=react&targets=&version=6.26.0) to see the raw JavaScript code produced by the JSX compilation step. +**JSX is optional and not required to use React.** Try the [Babel REPL](babel-repl://es5-syntax-example) to see the raw JavaScript code produced by the JSX compilation step. diff --git a/content/tutorial/tutorial.md b/content/tutorial/tutorial.md index 9ca297200..5dcd5b0eb 100644 --- a/content/tutorial/tutorial.md +++ b/content/tutorial/tutorial.md @@ -28,7 +28,7 @@ Once you get a little familiar with the game, feel free to close that tab, as we We'll assume some familiarity with HTML and JavaScript, but you should be able to follow along even if you haven't used them before. -If you need a refresher on JavaScript, we recommend reading [this guide](https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript). Note that we're also using some features from ES6, a recent version of JavaScript. In this tutorial, we're using [arrow functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions), [classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes), [`let`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let), and [`const`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const) statements. You can use Babel REPL to check what ES6 code compiles to. +If you need a refresher on JavaScript, we recommend reading [this guide](https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript). Note that we're also using some features from ES6, a recent version of JavaScript. In this tutorial, we're using [arrow functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions), [classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes), [`let`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let), and [`const`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const) statements. You can use the [Babel REPL](babel-repl://es5-syntax-example) to check what ES6 code compiles to. ### How to Follow Along diff --git a/examples/es5-syntax-example.js b/examples/es5-syntax-example.js new file mode 100644 index 000000000..6d1e2033b --- /dev/null +++ b/examples/es5-syntax-example.js @@ -0,0 +1,3 @@ +const element =