Change to DOMMatrix creation for performance; build script

.gitignore

@@ -0,0 +1,2 @@
+node_modules/
+build/

build.mjs

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+import { exec } from 'child_process';
+import fs from 'node:fs';
+// import { minify } from 'terser';
+
+const BUILD_FOLDER = 'build';
+
+async function command(s) {
+	return new Promise((resolve, reject) => {
+		console.log('Command >>', s);
+		exec(s, (err, stdout, stderr) => {
+			if (err) {
+				console.error(err);
+				reject(err);
+				return;
+			}
+			console.log(stdout);
+			resolve(stdout);
+		});
+	});
+}
+
+async function zip(inputPath) {
+	const zipPath = `${BUILD_FOLDER}/w.min-${Number(new Date())}.zip`;
+	await command(`.\\node_modules\\ect-bin\\vendor\\win32\\ect.exe -9 -strip -zip .\\${zipPath} ${inputPath}`);
+	// await command(`.\\ect-0.8.3.exe -9 -strip -zip .\\${zipPath} ${inputPath}`);
+	return zipPath;
+}
+
+async function compress(jsPath) {
+	await command(`rmdir /s /q ${BUILD_FOLDER}`);
+	await command(`mkdir ${BUILD_FOLDER}`);
+
+	// const terser = { out: `${BUILD_FOLDER}/w.min-terser.js` };
+	// const gcc = { in: jsPath, out: `${BUILD_FOLDER}/w.min-gcc.js` };
+	const ugly = { in: jsPath, out: `${BUILD_FOLDER}/w.min-ugly.js` };
+	// const road = { in: terser.out, out: `${BUILD_FOLDER}/w.2.rr.js`};
+
+	// const js = fs.readFileSync(jsPath, 'utf8');
+	// const min = await minify(js);
+	// fs.writeFileSync(terser.out, min.code);
+	// await command(`npx google-closure-compiler --js=${gcc.in} --js_output_file=${gcc.out} --compilation_level=SIMPLE --language_out=ECMASCRIPT_2019 --warning_level=VERBOSE --jscomp_off=* --assume_function_wrapper`);
+	await command(`npx uglifyjs -o ${ugly.out} --compress --mangle -- ${ugly.in}`);
+	// await command(`npx roadroller ${road.in} -o ${road.out}`);
+
+	const zipPath = await zip(ugly.out);
+
+	[
+		// terser.out, gcc.out, ugly.out, road.out,
+		zipPath
+	].forEach((outPath) => {
+		const js = fs.readFileSync(outPath, 'utf8');
+		console.log('--------\n', outPath, js.length, 'bytes\n--------');
+	});
+}
+
+compress('w.js');