Fix JS error on other pages and use Standard formatting

Author: XAMPPRocky

README.md

@@ -3,18 +3,44 @@
 Welcome to the [Rust Forge]! Rust Forge serves as a repository of supplementary
 documentation useful for members of [The Rust Programming Language].
 
+[the rust programming language]: https://rust-lang.org
+[rust forge]: https://forge.rust-lang.org
+
 # Building
+
 ```
 $ mdbook build
 ```
 
 # Development
+
 When developing it's recommended to use the `serve` command to launch a local
 server to allow you to easily see and update changes you make.
+
 ```
 $ mdbook serve
 ```
 
-[The Rust Programming Language]: https://rust-lang.org
-[Rust Forge]: https://forge.rust-lang.org
+## JavaScript
+
+Forge uses JavaScript to display dates for releases and "no tools breakage
+week". When making modifications to the JavaScript make sure it matches the
+[standard] style. You can install `standard` and automatically format the code
+using the following commands.
+
+[standard]: https://standardjs.com/index.html
 
+### Install
+
+```bash
+# With Yarn
+yarn global add standard
+# With NPM
+npm install --global standard
+```
+
+### Formatting
+
+```bash
+standard --fix js/
+```

js/index.js

@@ -1,29 +1,32 @@
-// Rust 1.5.0 was released on 2015-12-10
-const epochDate = moment.utc("2015-12-10");
-const epochRelease = 5;
-const dateFormat = "MMMM Do YYYY";
+/* global moment */
 
-const newReleases = Math.floor(moment.utc().diff(epochDate, "weeks") / 6);
+// Rust 1.5.0 was released on 2015-12-10
+const EPOCH_DATE = moment.utc('2015-12-10')
+const EPOCH_RELEASE = 5
+const DATE_FORMAT = 'MMMM Do YYYY'
+const newReleases = Math.floor(moment.utc().diff(EPOCH_DATE, 'weeks') / 6)
 
-const addRelease = (kind, incr, tools_week) => {
-    const releaseNumber = epochRelease + newReleases + incr;
-    const displayVersion = `1.${releaseNumber}`
-    const releaseDate = epochDate.clone().add((newReleases + incr) * 6, "weeks");
+function addRelease (kind, incr, toolsWeek) {
+  const releaseNumber = EPOCH_RELEASE + newReleases + incr
+  const displayVersion = `1.${releaseNumber}`
+  const releaseDate = EPOCH_DATE.clone().add((newReleases + incr) * 6, 'weeks')
 
-    document.querySelector(`#${kind}-version`).textContent = displayVersion;
-    document.querySelector(`#${kind}-release-date`).textContent = releaseDate.format(dateFormat);
+  document.querySelector(`#${kind}-version`).textContent = displayVersion
+  document.querySelector(`#${kind}-release-date`).textContent = `${releaseDate.format(DATE_FORMAT)} UTC`
 
-    if (tools_week === true) {
-        const noBreakagesTo = releaseDate.clone().day(2);
-        const noBreakagesFrom = noBreakagesTo.clone().subtract(6, 'day');
-        const toDate = noBreakagesTo.format(dateFormat);
-        const fromDate = noBreakagesFrom.format(dateFormat);
+  if (toolsWeek) {
+    const noBreakagesTo = releaseDate.clone().day(2)
+    const noBreakagesFrom = noBreakagesTo.clone().subtract(6, 'days')
+    const toDate = noBreakagesTo.format(DATE_FORMAT)
+    const fromDate = noBreakagesFrom.format(DATE_FORMAT)
 
-        document.querySelector(`#${kind}-cycle`).textContent = displayVersion;
-        document.querySelector(`#${kind}-timespan`).textContent = `${fromDate} → ${toDate}`;
-    }
-};
+    document.querySelector(`#${kind}-cycle`).textContent = displayVersion
+    document.querySelector(`#${kind}-timespan`).textContent = `${fromDate} → ${toDate}`
+  }
+}
 
-addRelease("stable", 0, false);
-addRelease("beta", 1, true);
-addRelease("nightly", 2, true);
+if (document.querySelector('#current-release-versions')) {
+  addRelease('stable', 0, false)
+  addRelease('beta', 1, true)
+  addRelease('nightly', 2, true)
+}

src/README.md

@@ -10,6 +10,9 @@ file an issue or PR on the [Rust Forge GitHub].
 <!-- All `<span id="..."></span>` elements are filled at run time when a reader
 visits the website. Please refer to `js/index.js` for how these values
 are generated.
+
+Avoid changing the "Current Release Versions" without also updating the selector
+in `js/index.js.
 -->
 
 ### Current Release Versions