diff --git a/zeppelin-web/.eslintrc b/zeppelin-web/.eslintrc
index 07090caf37..b40bba1de2 100644
--- a/zeppelin-web/.eslintrc
+++ b/zeppelin-web/.eslintrc
@@ -39,7 +39,6 @@
     "no-redeclare": 0,
     "standard/object-curly-even-spacing": 0,
     "no-eval": 0,
-    "no-extra-semi": 0,
     "no-unneeded-ternary": 0,
     "padded-blocks": 0,
     "no-var": 0,
diff --git a/zeppelin-web/src/app/handsontable/handsonHelper.js b/zeppelin-web/src/app/handsontable/handsonHelper.js
index 8e5519acec..f845750684 100644
--- a/zeppelin-web/src/app/handsontable/handsonHelper.js
+++ b/zeppelin-web/src/app/handsontable/handsonHelper.js
@@ -21,7 +21,7 @@ export default class HandsonHelper {
     this.rows = rows || [];
     this.comment = comment || '';
     this._numericValidator = this._numericValidator.bind(this);
-  };
+  }
 
   getHandsonTableConfig (columns, columnNames, resultRows) {
     var self = this;
@@ -68,7 +68,7 @@ export default class HandsonHelper {
         TH.style['white-space'] = 'normal';
       }
     };
-  };
+  }
 
   /*
   ** Private Service Functions
diff --git a/zeppelin-web/src/app/helium/helium.controller.js b/zeppelin-web/src/app/helium/helium.controller.js
index b0f6f93d19..2307934fab 100644
--- a/zeppelin-web/src/app/helium/helium.controller.js
+++ b/zeppelin-web/src/app/helium/helium.controller.js
@@ -58,7 +58,7 @@ export default function HeliumCtrl ($scope, $rootScope, $sce,
         $scope.bundleOrder = visPackageOrder;
         $scope.bundleOrderChanged = false;
       });
-  };
+  }
 
   var orderPackageByPubDate = function (a, b) {
     if (!a.pkg.published) {
diff --git a/zeppelin-web/src/app/notebookRepos/notebookRepos.controller.js b/zeppelin-web/src/app/notebookRepos/notebookRepos.controller.js
index 876310c072..8715b29872 100644
--- a/zeppelin-web/src/app/notebookRepos/notebookRepos.controller.js
+++ b/zeppelin-web/src/app/notebookRepos/notebookRepos.controller.js
@@ -83,5 +83,5 @@ function NotebookReposCtrl ($http, baseUrlSrv, ngToast) {
 
   function _init () {
     _getInterpreterSettings();
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/tabledata/columnselector.js b/zeppelin-web/src/app/tabledata/columnselector.js
index c1fe2bcecf..e483325cfd 100644
--- a/zeppelin-web/src/app/tabledata/columnselector.js
+++ b/zeppelin-web/src/app/tabledata/columnselector.js
@@ -29,7 +29,7 @@ export default class ColumnselectorTransformation extends Transformation {
   constructor (config, columnSelectorProp) {
     super(config);
     this.props = columnSelectorProp;
-  };
+  }
 
   getSetting () {
     var self = this;
@@ -49,7 +49,7 @@ export default class ColumnselectorTransformation extends Transformation {
         }
       }
     };
-  };
+  }
 
   /**
    * Method will be invoked when tableData or config changes
@@ -58,7 +58,7 @@ export default class ColumnselectorTransformation extends Transformation {
     this.tableDataColumns = tableData.columns;
     this.removeUnknown();
     return tableData;
-  };
+  }
 
   removeUnknown () {
     var fields = this.config;
@@ -78,5 +78,5 @@ export default class ColumnselectorTransformation extends Transformation {
         }
       }
     }
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/tabledata/passthrough.js b/zeppelin-web/src/app/tabledata/passthrough.js
index c57db086fb..d7363d4a9e 100644
--- a/zeppelin-web/src/app/tabledata/passthrough.js
+++ b/zeppelin-web/src/app/tabledata/passthrough.js
@@ -20,12 +20,12 @@ import Transformation from './transformation';
 export default class PassthroughTransformation extends Transformation {
   constructor (config) {
     super(config);
-  };
+  }
 
   /**
    * Method will be invoked when tableData or config changes
    */
   transform (tableData) {
     return tableData;
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/tabledata/pivot.js b/zeppelin-web/src/app/tabledata/pivot.js
index 5a07e6b51d..11f4f722e1 100644
--- a/zeppelin-web/src/app/tabledata/pivot.js
+++ b/zeppelin-web/src/app/tabledata/pivot.js
@@ -20,7 +20,7 @@ import Transformation from './transformation';
 export default class PivotTransformation extends Transformation {
   constructor (config) {
     super(config);
-  };
+  }
 
   getSetting () {
     var self = this;
@@ -53,7 +53,7 @@ export default class PivotTransformation extends Transformation {
         }
       }
     };
-  };
+  }
 
   /**
    * Method will be invoked when tableData or config changes
@@ -78,7 +78,7 @@ export default class PivotTransformation extends Transformation {
       config.keys,
       config.groups,
       config.values);
-  };
+  }
 
   removeUnknown () {
     var config = this.config.common.pivot;
@@ -116,7 +116,7 @@ export default class PivotTransformation extends Transformation {
     unique(config.groups);
     removeUnknown(config.groups);
     removeUnknown(config.values);
-  };
+  }
 
   selectDefault () {
     var config = this.config.common.pivot;
@@ -131,7 +131,7 @@ export default class PivotTransformation extends Transformation {
         config.values.push(this.tableDataColumns[1]);
       }
     }
-  };
+  }
 
   pivot (data, keys, groups, values) {
     var aggrFunc = {
@@ -258,5 +258,5 @@ export default class PivotTransformation extends Transformation {
       schema: schema,
       rows: rows
     };
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/tabledata/tabledata.js b/zeppelin-web/src/app/tabledata/tabledata.js
index 02ff40937b..57a83b878a 100644
--- a/zeppelin-web/src/app/tabledata/tabledata.js
+++ b/zeppelin-web/src/app/tabledata/tabledata.js
@@ -20,7 +20,7 @@ export default class TableData {
     this.columns = columns || [];
     this.rows = rows || [];
     this.comment = comment || '';
-  };
+  }
 
   loadParagraphResult (paragraphResult) {
     if (!paragraphResult || paragraphResult.type !== 'TABLE') {
@@ -69,5 +69,5 @@ export default class TableData {
     this.comment = comment;
     this.columns = columnNames;
     this.rows = rows;
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/tabledata/transformation.js b/zeppelin-web/src/app/tabledata/transformation.js
index 4db08b20d0..c4b1bbb9f1 100644
--- a/zeppelin-web/src/app/tabledata/transformation.js
+++ b/zeppelin-web/src/app/tabledata/transformation.js
@@ -19,7 +19,7 @@ export default class Transformation {
   constructor (config) {
     this.config = config;
     this._emitter;
-  };
+  }
 
   /**
    * return {
@@ -29,14 +29,14 @@ export default class Transformation {
    */
   getSetting () {
     // override this
-  };
+  }
 
   /**
    * Method will be invoked when tableData or config changes
    */
   transform (tableData) {
     // override this
-  };
+  }
 
   /**
    * render setting
@@ -81,23 +81,23 @@ export default class Transformation {
     } else {
       this._render(targetEl, template, scope);
     }
-  };
+  }
 
   _render (targetEl, template, scope) {
     this._targetEl = targetEl;
     targetEl.html(template);
     this._compile(targetEl.contents())(scope);
     this._scope = scope;
-  };
+  }
 
   setConfig (config) {
     this.config = config;
-  };
+  }
 
   /**
    * Emit config. config will sent to server and saved.
    */
   emitConfig (config) {
     this._emitter(config);
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-areachart.js b/zeppelin-web/src/app/visualization/builtins/visualization-areachart.js
index 36166b6c8a..abf606bc9d 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-areachart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-areachart.js
@@ -23,15 +23,15 @@ export default class AreachartVisualization extends Nvd3ChartVisualization {
     super(targetEl, config);
 
     this.pivot = new PivotTransformation(config);
-  };
+  }
 
   type () {
     return 'stackedAreaChart';
-  };
+  }
 
   getTransformation () {
     return this.pivot;
-  };
+  }
 
   render (pivot) {
     var d3Data = this.d3DataFromPivot(
@@ -46,7 +46,7 @@ export default class AreachartVisualization extends Nvd3ChartVisualization {
 
     this.xLabels = d3Data.xLabels;
     super.render(d3Data);
-  };
+  }
 
   /**
    * Set new config
@@ -54,7 +54,7 @@ export default class AreachartVisualization extends Nvd3ChartVisualization {
   setConfig (config) {
     super.setConfig(config);
     this.pivot.setConfig(config);
-  };
+  }
 
   configureChart (chart) {
     var self = this;
@@ -74,5 +74,5 @@ export default class AreachartVisualization extends Nvd3ChartVisualization {
         self.emitConfig(self.config);
       }, 500);
     });
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-barchart.js b/zeppelin-web/src/app/visualization/builtins/visualization-barchart.js
index ff00279239..5df6d03634 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-barchart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-barchart.js
@@ -23,15 +23,15 @@ export default class BarchartVisualization extends Nvd3ChartVisualization {
     super(targetEl, config);
 
     this.pivot = new PivotTransformation(config);
-  };
+  }
 
   type () {
     return 'multiBarChart';
-  };
+  }
 
   getTransformation () {
     return this.pivot;
-  };
+  }
 
   render (pivot) {
     var d3Data = this.d3DataFromPivot(
@@ -54,7 +54,7 @@ export default class BarchartVisualization extends Nvd3ChartVisualization {
   setConfig (config) {
     super.setConfig(config);
     this.pivot.setConfig(config);
-  };
+  }
 
   configureChart (chart) {
     var self = this;
@@ -106,8 +106,6 @@ export default class BarchartVisualization extends Nvd3ChartVisualization {
     });
   };
 
-
-
   getSetting(chart) {
     var self = this;
     var configObj = self.config;
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-linechart.js b/zeppelin-web/src/app/visualization/builtins/visualization-linechart.js
index 8ff34df774..8e3ef2dd2a 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-linechart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-linechart.js
@@ -23,7 +23,7 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
     super(targetEl, config);
 
     this.pivot = new PivotTransformation(config);
-  };
+  }
 
   type () {
     if (this.config.lineWithFocus) {
@@ -31,11 +31,11 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
     } else {
       return 'lineChart';
     }
-  };
+  }
 
   getTransformation () {
     return this.pivot;
-  };
+  }
 
   render (pivot) {
     var d3Data = this.d3DataFromPivot(
@@ -50,7 +50,7 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
 
     this.xLabels = d3Data.xLabels;
     super.render(d3Data);
-  };
+  }
 
   /**
    * Set new config
@@ -64,7 +64,7 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
       super.destroy();
       this.currentMode = config.lineWithFocus;
     }
-  };
+  }
 
   configureChart (chart) {
     var self = this;
@@ -84,7 +84,7 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
     } else {
       chart.forceY([]);
     }
-  };
+  }
 
   getSetting (chart) {
     var self = this;
@@ -114,9 +114,9 @@ export default class LinechartVisualization extends Nvd3ChartVisualization {
         }
       }
     };
-  };
+  }
 
   defaultY () {
     return undefined;
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-nvd3chart.js b/zeppelin-web/src/app/visualization/builtins/visualization-nvd3chart.js
index a850cd325b..4109618328 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-nvd3chart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-nvd3chart.js
@@ -21,13 +21,13 @@ export default class Nvd3ChartVisualization extends Visualization {
   constructor (targetEl, config) {
     super(targetEl, config);
     this.targetEl.append('<svg></svg>');
-  };
+  }
 
   refresh () {
     if (this.chart) {
       this.chart.update();
     }
-  };
+  }
 
   render (data) {
     var type = this.type();
@@ -58,19 +58,19 @@ export default class Nvd3ChartVisualization extends Visualization {
       .duration(animationDuration)
       .call(this.chart);
     d3.select('#' + this.targetEl[0].id + ' svg').style.height = height + 'px';
-  };
+  }
 
   type () {
     // override this and return chart type
-  };
+  }
 
   configureChart (chart) {
     // override this to configure chart
-  };
+  }
 
   groupedThousandsWith3DigitsFormatter (x) {
     return d3.format(',')(d3.round(x, 3));
-  };
+  }
 
   customAbbrevFormatter (x) {
     var s = d3.format('.3s')(x);
@@ -78,11 +78,11 @@ export default class Nvd3ChartVisualization extends Visualization {
       case 'G': return s.slice(0, -1) + 'B';
     }
     return s;
-  };
+  }
 
   defaultY () {
     return 0;
-  };
+  }
 
   xAxisTickFormat (d, xLabels) {
     if (xLabels[d] && (isNaN(parseFloat(xLabels[d])) || !isFinite(xLabels[d]))) { // to handle string type xlabel
@@ -90,14 +90,14 @@ export default class Nvd3ChartVisualization extends Visualization {
     } else {
       return d;
     }
-  };
+  }
 
   yAxisTickFormat (d) {
     if (Math.abs(d) >= Math.pow(10, 6)) {
       return this.customAbbrevFormatter(d);
     }
     return this.groupedThousandsWith3DigitsFormatter(d);
-  };
+  }
 
   d3DataFromPivot (
     schema, rows, keys, groups, values, allowTextXAxis, fillMissingValues, multiBarChart) {
@@ -246,7 +246,7 @@ export default class Nvd3ChartVisualization extends Visualization {
       xLabels: rowIndexValue,
       d3g: d3g
     };
-  };
+  }
 
   /**
    * method will be invoked when visualization need to be destroyed.
@@ -257,5 +257,5 @@ export default class Nvd3ChartVisualization extends Visualization {
       d3.selectAll('#' + this.targetEl[0].id + ' svg > *').remove();
       this.chart = undefined;
     }
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-piechart.js b/zeppelin-web/src/app/visualization/builtins/visualization-piechart.js
index 5215570b8b..3a60c62c75 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-piechart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-piechart.js
@@ -22,15 +22,15 @@ export default class PiechartVisualization extends Nvd3ChartVisualization {
   constructor (targetEl, config) {
     super(targetEl, config);
     this.pivot = new PivotTransformation(config);
-  };
+  }
 
   type () {
     return 'pieChart';
-  };
+  }
 
   getTransformation () {
     return this.pivot;
-  };
+  }
 
   render (pivot) {
     // [ZEPPELIN-2253] New chart function will be created each time inside super.render()
@@ -64,7 +64,7 @@ export default class PiechartVisualization extends Nvd3ChartVisualization {
     // [].concat flattens it, http://stackoverflow.com/a/10865042/5154397
     d3g = [].concat.apply([], d3g);
     super.render({d3g: d3g});
-  };
+  }
 
   /**
    * Set new config
@@ -72,12 +72,12 @@ export default class PiechartVisualization extends Nvd3ChartVisualization {
   setConfig (config) {
     super.setConfig(config);
     this.pivot.setConfig(config);
-  };
+  }
 
   configureChart (chart) {
     chart.x(function (d) { return d.label; })
       .y(function (d) { return d.value; })
       .showLabels(false)
       .showTooltipPercent(true);
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-scatterchart.js b/zeppelin-web/src/app/visualization/builtins/visualization-scatterchart.js
index 527af9f141..41a36f951b 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-scatterchart.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-scatterchart.js
@@ -43,15 +43,15 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
       }
     ];
     this.columnselector = new ColumnselectorTransformation(config, this.columnselectorProps);
-  };
+  }
 
   type () {
     return 'scatterChart';
-  };
+  }
 
   getTransformation () {
     return this.columnselector;
-  };
+  }
 
   render (tableData) {
     this.tableData = tableData;
@@ -61,7 +61,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
     this.yLabels = d3Data.yLabels;
 
     super.render(d3Data);
-  };
+  }
 
   configureChart (chart) {
     var self = this;
@@ -76,7 +76,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
 
     chart.showDistX(true).showDistY(true);
     // handle the problem of tooltip not showing when muliple points have same value.
-  };
+  }
 
   yAxisTickFormat (d, yLabels) {
     if (yLabels[d] && (isNaN(parseFloat(yLabels[d])) || !isFinite(yLabels[d]))) { // to handle string type xlabel
@@ -95,7 +95,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
         this.config.xAxis = this.tableData.columns[0];
       }
     }
-  };
+  }
 
   setScatterChart (data, refresh) {
     var xAxis = this.config.xAxis;
@@ -239,7 +239,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
       yLabels: colIndexValue,
       d3g: d3g
     };
-  };
+  }
 
   setDiscreteScatterData (data) {
     var xAxis = this.config.xAxis;
@@ -289,7 +289,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
       newRows.push(newRow);
     }
     return newRows;
-  };
+  }
 
   isDiscrete (field) {
     var getUnique = function (f) {
@@ -320,7 +320,7 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
     } else {
       return false;
     }
-  };
+  }
 
   isValidSizeOption (options) {
     var xValues = [];
@@ -356,5 +356,5 @@ export default class ScatterchartVisualization extends Nvd3ChartVisualization {
     }
 
     return true;
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/builtins/visualization-table.js b/zeppelin-web/src/app/visualization/builtins/visualization-table.js
index f2325592a5..4df1d4114b 100644
--- a/zeppelin-web/src/app/visualization/builtins/visualization-table.js
+++ b/zeppelin-web/src/app/visualization/builtins/visualization-table.js
@@ -25,11 +25,11 @@ export default class TableVisualization extends Visualization {
     console.log('Init table viz');
     targetEl.addClass('table');
     this.passthrough = new PassthroughTransformation(config);
-  };
+  }
 
   refresh () {
     this.hot.render();
-  };
+  }
 
   render (tableData) {
     var height = this.targetEl.height();
@@ -48,15 +48,15 @@ export default class TableVisualization extends Visualization {
     this.hot = new Handsontable(container, handsonHelper.getHandsonTableConfig(
       columns, columnNames, resultRows));
     this.hot.validateCells(null);
-  };
+  }
 
   destroy () {
     if (this.hot) {
       this.hot.destroy();
     }
-  };
+  }
 
   getTransformation () {
     return this.passthrough;
-  };
+  }
 }
diff --git a/zeppelin-web/src/app/visualization/visualization.js b/zeppelin-web/src/app/visualization/visualization.js
index 934f496a8d..d855f975ef 100644
--- a/zeppelin-web/src/app/visualization/visualization.js
+++ b/zeppelin-web/src/app/visualization/visualization.js
@@ -22,28 +22,28 @@ export default class Visualization {
     this._dirty = false;
     this._active = false;
     this._emitter;
-  };
+  }
 
   /**
    * get transformation
    */
   getTransformation () {
     // override this
-  };
+  }
 
   /**
    * Method will be invoked when data or configuration changed
    */
   render (tableData) {
     // override this
-  };
+  }
 
   /**
    * Refresh visualization.
    */
   refresh () {
     // override this
-  };
+  }
 
   /**
    * method will be invoked when visualization need to be destroyed.
@@ -51,7 +51,7 @@ export default class Visualization {
    */
   destroy () {
     // override this
-  };
+  }
 
   /**
    * return {
@@ -61,7 +61,7 @@ export default class Visualization {
    */
   getSetting () {
     // override this
-  };
+  }
 
   /**
    * Activate. invoked when visualization is selected
@@ -72,21 +72,21 @@ export default class Visualization {
       this._dirty = false;
     }
     this._active = true;
-  };
+  }
 
   /**
    * Activate. invoked when visualization is de selected
    */
   deactivate () {
     this._active = false;
-  };
+  }
 
   /**
    * Is active
    */
   isActive () {
     return this._active;
-  };
+  }
 
   /**
    * When window or paragraph is resized
@@ -97,7 +97,7 @@ export default class Visualization {
     } else {
       this._dirty = true;
     }
-  };
+  }
 
   /**
    * Set new config
@@ -109,14 +109,14 @@ export default class Visualization {
     } else {
       this._dirty = true;
     }
-  };
+  }
 
   /**
    * Emit config. config will sent to server and saved.
    */
   emitConfig (config) {
     this._emitter(config);
-  };
+  }
 
   /**
    * render setting
@@ -160,7 +160,7 @@ export default class Visualization {
     } else {
       _renderSetting(this, targetEl, template, scope);
     }
-  };
+  }
 }
 
 function _renderSetting (instance, targetEl, template, scope) {
@@ -168,4 +168,4 @@ function _renderSetting (instance, targetEl, template, scope) {
   targetEl.html(template);
   instance._compile(targetEl.contents())(scope);
   instance._scope = scope;
-};
+}