Added a build step to minify the browser version of the Dompiler Java…

…Script files.

src/build.js

@@ -1,5 +1,6 @@
 // Dependencies.
-let fs = require("fs");
+let fs = require("fs"),
+    Terser = require("terser");
 
 // Variables.
 let noop = function () {};
@@ -12,6 +13,10 @@ transformExports("library/events.js", "dist/events.js");
 fs.copyFile("library/dompiler.js", "../docs/library/dompiler.js", noop);
 fs.copyFile("library/events.js", "../docs/library/events.js", noop);
 
+// Minify the files.
+minifyFile("library/dompiler.js", "dist/browser/dompiler.min.js");
+minifyFile("library/events.js", "dist/browser/events.min.js");
+
 /**
  * Converts the specified file into one that uses the type of exports
  * that Node understands.
@@ -23,4 +28,16 @@ function transformExports(inFilename, outFilename) {
         data = data.replace("export default", "module.exports =");
         fs.writeFile(outFilename, data, noop);
     });
+}
+
+/**
+ * Minifies the specified JavaScript file.
+ * @param inFilename The path to the JavaScript file to minify.
+ * @param outFilename The path to the file to save the minified code to.
+ */
+function minifyFile(inFilename, outFilename) {
+    fs.readFile(inFilename, "utf8", function (err, data) {
+        let result = Terser.minify(data);
+        fs.writeFile(outFilename, result.code, noop);
+    });
 }

src/package.json

@@ -20,5 +20,8 @@
     "bugs": {
         "url": "https://github.com/Nicholas-Westby/dompiler/issues"
     },
-    "homepage": "https://www.dompiler.com/"
+    "homepage": "https://www.dompiler.com/",
+    "devDependencies": {
+        "terser": "^4.0.1"
+    }
 }