CLI: Code cleanup (#9004)

CLI: Code cleanup

lib/cli/lib/helpers.js

@@ -208,27 +208,23 @@ export function installDependencies(npmOptions, dependencies) {
   if (skipInstall) {
     const { packageJson } = npmOptions;
 
+    const dependenciesMap = dependencies.reduce((acc, dep) => {
+      const idx = dep.lastIndexOf('@');
+      const packageName = dep.slice(0, idx);
+      const packageVersion = dep.slice(idx + 1);
+
+      return { ...acc, [packageName]: packageVersion };
+    }, {});
+
     if (npmOptions.installAsDevDependencies) {
       packageJson.devDependencies = {
         ...packageJson.devDependencies,
-        ...dependencies.reduce((acc, i) => {
-          const c = i.lastIndexOf('@');
-          const n = i.slice(0, c);
-          const v = i.slice(c + 1);
-
-          return { ...acc, [n]: v };
-        }, {}),
+        ...dependenciesMap,
       };
     } else {
       packageJson.dependencies = {
         ...packageJson.dependencies,
-        ...dependencies.reduce((acc, i) => {
-          const c = i.lastIndexOf('@');
-          const n = i.slice(0, c);
-          const v = i.slice(c + 1);
-
-          return { ...acc, [n]: v };
-        }, {}),
+        ...dependenciesMap,
       };
     }
 
@@ -256,7 +252,7 @@ export function installDependencies(npmOptions, dependencies) {
 }
 
 /**
- * Detect if any babel depencies need to be added to the project
+ * Detect if any babel dependencies need to be added to the project
  * @param {Object} npmOptions Passed along to `latestVersion` and `getVersion`
  * @param {Object} packageJson The current package.json so we can inspect its contents
  * @returns {Array} Contains the packages and versions that need to be installed