From 39cf4fc8c1b137c2ea89380adbf59d60ece0b61a Mon Sep 17 00:00:00 2001
From: hangzou <zouhang@didiglobal.com>
Date: Mon, 2 Nov 2020 16:48:46 +0800
Subject: [PATCH] fix(build): improve code style (#528)

---
 build/bincomp.js         | 19 +++++++++++--------
 build/build.component.js |  3 +--
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/build/bincomp.js b/build/bincomp.js
index c44a15c805..939ca26280 100644
--- a/build/bincomp.js
+++ b/build/bincomp.js
@@ -12,9 +12,12 @@ const pkgs = getPackagesSync()
     !name.includes('transition') &&
     !name.includes('utils'),
   )
-
-const buildChild = (a, b) => {
-  const c1 = cp.spawn('node', ['./build/build.component.js', a, b])
+const STEP = 4
+const START = 0
+const buildChild = (start, end) => {
+  let s = start
+  let e = end
+  const c1 = cp.spawn('node', ['./build/build.component.js', s, e])
   c1.stdout.on('data', function (data) {
     spinner.info(`${chalk.blue(data)}`)
   })
@@ -24,17 +27,17 @@ const buildChild = (a, b) => {
   })
 
   c1.on('close', function (code) {
-    a += 5
-    b += 5
-    if (a > pkgs.length && b > pkgs.length) {
+    s += STEP
+    e += STEP
+    if (s > pkgs.length) {
       spinner.succeed(`${chalk.green('Build done. Exit code ' + code)}`)
       return
     }
-    buildChild(a, b)
+    buildChild(s, e)
   })
 }
 
 /**
  * @link https://github.com/ezolenko/rollup-plugin-typescript2/issues/177
  */
-buildChild(0, 5)
+buildChild(START, STEP)
diff --git a/build/build.component.js b/build/build.component.js
index 4e4fe6f065..3a7c8a9e75 100644
--- a/build/build.component.js
+++ b/build/build.component.js
@@ -24,6 +24,7 @@ const runBuild = async () => {
   build(inputs[index])
 
   async function build(name) {
+    if (!name) return
     const inputOptions = {
       input: path.resolve(__dirname, `../packages/${name.split('@element-plus/')[1]}/index.ts`),
       plugins: [
@@ -68,8 +69,6 @@ const runBuild = async () => {
     index++
     if (index < inputs.length) {
       await build(inputs[index])
-    } else {
-      console.log('batch done')
     }
   }
 }