diff --git a/packages/dag/src/nodes/JavaScript.js b/packages/dag/src/nodes/JavaScript.js
index d88342ae9..330b7678f 100644
--- a/packages/dag/src/nodes/JavaScript.js
+++ b/packages/dag/src/nodes/JavaScript.js
@@ -105,10 +105,10 @@ export class JavaScript extends NodeType {
                   height: 500,
                   options: { showPrintMargin: false, wrap: false },
                   includeBeforeAndAfter: true,
-                  before: 'function process(record){',
-                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\{`,
-                  afterRegexp: '}[^}]*$',
-                  after: '}',
+                  before: 'function process(record){\n',
+                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\s*\{\n?`,
+                  afterRegexp: String.raw`\n?}[^}]*$`,
+                  after: '\n}',
                   param: 'tapTable',
                   handleAddCompleter: '{{addDeclaredCompleterForSync}}',
                 },
diff --git a/packages/dag/src/nodes/JsProcessor.js b/packages/dag/src/nodes/JsProcessor.js
index 19e00d1bc..7c4d4182b 100644
--- a/packages/dag/src/nodes/JsProcessor.js
+++ b/packages/dag/src/nodes/JsProcessor.js
@@ -105,10 +105,10 @@ export class JavaScript extends NodeType {
                   height: 500,
                   options: { showPrintMargin: false, wrap: false },
                   includeBeforeAndAfter: true,
-                  before: 'function process(record){',
-                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\{`,
-                  afterRegexp: '}[^}]*$',
-                  after: '}',
+                  before: 'function process(record){\n',
+                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\s*\{\n?`,
+                  afterRegexp: String.raw`\n?}[^}]*$`,
+                  after: '\n}',
                   param: 'schemaApplyResultList',
                   handleAddCompleter: '{{addDeclaredCompleterForMigrate}}',
                 },
diff --git a/packages/dag/src/nodes/StandardJs.js b/packages/dag/src/nodes/StandardJs.js
index 224589f74..ba58d9e5d 100644
--- a/packages/dag/src/nodes/StandardJs.js
+++ b/packages/dag/src/nodes/StandardJs.js
@@ -87,10 +87,10 @@ export class StandardJs extends NodeType {
                   height: 500,
                   options: { showPrintMargin: false, wrap: false },
                   includeBeforeAndAfter: true,
-                  before: 'function process(record){',
-                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\{`,
-                  afterRegexp: '}[^}]*$',
-                  after: '}',
+                  before: 'function process(record){\n',
+                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\s*\{\n?`,
+                  afterRegexp: String.raw`\n?}[^}]*$`,
+                  after: '\n}',
                   param: 'tapTable',
                   handleAddCompleter: '{{addDeclaredCompleterForSync}}',
                 },
diff --git a/packages/dag/src/nodes/StandardMigrateJs.js b/packages/dag/src/nodes/StandardMigrateJs.js
index 087de460c..f96accc8d 100644
--- a/packages/dag/src/nodes/StandardMigrateJs.js
+++ b/packages/dag/src/nodes/StandardMigrateJs.js
@@ -86,10 +86,10 @@ export class StandardJs extends NodeType {
                   height: 500,
                   options: { showPrintMargin: false, wrap: false },
                   includeBeforeAndAfter: true,
-                  before: 'function process(record){',
-                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\{`,
-                  afterRegexp: '}[^}]*$',
-                  after: '}',
+                  before: 'function process(record){\n',
+                  beforeRegexp: String.raw`^[^]*function\s+process\s*\(record\)\s*\{\n?`,
+                  afterRegexp: String.raw`\n?}[^}]*$`,
+                  after: '\n}',
                   param: 'schemaApplyResultList',
                   handleAddCompleter: '{{addDeclaredCompleterForSync}}',
                 },