diff --git a/src/extract.js b/src/extract.js
index d103e3f..244fea4 100644
--- a/src/extract.js
+++ b/src/extract.js
@@ -33,25 +33,25 @@
       if (this.sourceMap &&
         (type === 'scripts' || type === 'elements')) {
         const contentLineStart = result.line
-        let contentLineCount = 0
+        // let contentLineCount = 0
 
         let cmap
         if (inputSourceMap) {
           cmap = consumeMap(this, source, inputSourceMap)
           source = cmap.sourcesContent.join('')
-            // printSourceWithLine(source)
+          // printSourceWithLine(source)
         }
 
         const iterator = splitSourceLine(content)
           .map((input, line) => {
-            contentLineCount++
+            // contentLineCount++
             line = line + 1
             let originalLine = line + contentLineStart
             const generatedLine = line
             if (cmap) {
               // mapping to the original of input source
               originalLine = cmap.mapping[`line-${originalLine}-column-0`].line
-                // console.log(originalLine + ':', input)
+              // console.log(originalLine + ':', input)
             }
             return {
               original: {
diff --git a/src/loader.js b/src/loader.js
index e20c3b0..4f49781 100644
--- a/src/loader.js
+++ b/src/loader.js
@@ -221,7 +221,7 @@
   const isEntry = resourceQuery.entry
   const filename = path.relative('.', resourcePath)
   const name = isEntry ? md5(fs.readFileSync(filename)) :
-                          (resourceQuery.name ||
+    (resourceQuery.name ||
                             getNameByPath(resourcePath))
 
   let output = ''
@@ -244,14 +244,14 @@
       }
 
       output += getRequireString(
-                  this,
-                  getLoaderString('element', {
-                    customLang,
-                    name: element.name,
-                    source: element.src
-                  }),
-                  `${src}?name=${element.name}`
-                )
+        this,
+        getLoaderString('element', {
+          customLang,
+          name: element.name,
+          source: element.src
+        }),
+        `${src}?name=${element.name}`
+      )
     }
   }
 
@@ -261,10 +261,10 @@
       if (elementNames.indexOf(dep) < 0
             && fs.existsSync(filepath)) {
         output += getRequireString(
-                    this,
-                    getLoaderString('none'),
-                    `./${dep}.we`
-                  )
+          this,
+          getLoaderString('none'),
+          `./${dep}.we`
+        )
       }
     }
   }
@@ -368,20 +368,20 @@
   output += `
 __weex_define__('@weex-component/${name}', [], function(__weex_require__, __weex_exports__, __weex_module__) {
 ` + (
-  frag.script.length > 0 ? `
+      frag.script.length > 0 ? `
     __weex_script__(__weex_module__, __weex_exports__, __weex_require__)
     if (__weex_exports__.__esModule && __weex_exports__.default) {
       __weex_module__.exports = __weex_exports__.default
     }
 ` : ''
-) +
+    ) +
 `
     __weex_module__.exports.template = __weex_template__
 ` + (
-  frag.style.length > 0 ? `
+      frag.style.length > 0 ? `
     __weex_module__.exports.style = __weex_style__
 ` : ''
-) + `
+    ) + `
 })
 `
   if (isEntry) {
diff --git a/src/util.js b/src/util.js
index f19f2da..aab43b4 100644
--- a/src/util.js
+++ b/src/util.js
@@ -45,10 +45,10 @@
 export function getRequireString (loaderContext, loader, filepath) {
   return 'require(' +
                 loaderUtils.stringifyRequest(
-                    loaderContext,
-                      loader ?
-                        `!!${loader}!${filepath}` :
-                        `${filepath}`
+                  loaderContext,
+                  loader ?
+                    `!!${loader}!${filepath}` :
+                    `${filepath}`
                 ) +
            ')\n'
 }
@@ -156,8 +156,8 @@
 export function printSourceWithLine (source) {
   console.log('>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
   source = splitSourceLine(source)
-              .map((input, line) => {
-                console.log(line + 1 + ':', input)
-              })
+    .map((input, line) => {
+      console.log(line + 1 + ':', input)
+    })
   console.log('<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<')
 }