Hidden columns

index.js

@@ -31,18 +31,24 @@ let buildExport = (params, options) => {
         value: specification[col].displayName,
         style: specification[col].headerStyle || ''
       })
+      let columnSpec = {}
+
+      if (typeof specification[col].hidden !== 'undefined') {
+        delete specification[col].width
+        columnSpec.hidden = specification[col].hidden
+      }
 
       if (specification[col].width) {
         if (Number.isInteger(specification[col].width)) {
-          config.cols.push({ wpx: specification[col].width })
+          columnSpec.wpx = specification[col].width
         } else if (Number.isInteger(parseInt(specification[col].width))) {
-          config.cols.push({ wch: specification[col].width })
+          columnSpec.wch = specification[col].width
         } else {
           throw 'Provide column width as a number'
         }
-      } else {
-        config.cols.push({})
-      }
+      } 
+
+      config.cols.push(columnSpec)
 
     }
     data.push(header) //Inject the header at 0

lib/excel.js

@@ -105,7 +105,7 @@ module.exports = {
       wb.SheetNames.push(name);
       wb.Sheets[name] = data;
 
-      if(worksheet.config.cols) {
+      if (worksheet.config.cols) {
         wb.Sheets[name]['!cols'] = worksheet.config.cols
       }
 

lib/node-excel-export.d.ts

@@ -43,6 +43,7 @@ declare module 'node-excel-export' {
       cellStyle?: ((value: TRowData[CellName], row: TRowData) => CellStyle) | CellStyle;
       cellFormat?: (value: TRowData[CellName], row: TRowData) => string;
       width: string | number;
+      hidden?: boolean;
     }
   }