More fixes to 0 Int (print issues)

Author: mkikets99

lib/index.js

@@ -324,7 +324,7 @@ var ReactDatatable = function (_Component) {
                 var cellData = _server2.default.renderToStaticMarkup(_column.cell(record, i));
                 cellData = this.strip(cellData);
                 tableHtml += "<td>" + cellData + "</td>";
-              } else if (record[_column.key]) {
+              } else if (record[_column.key] !== undefined) {
                 tableHtml += "<td>" + record[_column.key] + "</td>";
               } else {
                 tableHtml += "<td></td>";
@@ -480,7 +480,7 @@ var ReactDatatable = function (_Component) {
                 var cellData = _server2.default.renderToStaticMarkup(_column2.cell(record, i));
                 cellData = this.strip(cellData);
                 newRecord[_column2.key] = cellData;
-              } else if (record[_column2.key]) {
+              } else if (record[_column2.key] !== undefined) {
                 var colValue = record[_column2.key];
                 colValue = typeof colValue === "string" ? colValue.replace(/"/g, '""') : colValue;
                 newRecord[_column2.key] = '"' + colValue + '"';

src/index.js

@@ -229,7 +229,7 @@ class ReactDatatable extends Component {
             let cellData =  ReactDOMServer.renderToStaticMarkup(column.cell(record, i));
                 cellData = this.strip(cellData);
             tableHtml += "<td>" + cellData + "</td>";
-          }else if (record[column.key]) {
+          }else if (record[column.key]!==undefined) {
             tableHtml += "<td>" + record[column.key] + "</td>";
           } else {
             tableHtml += "<td></td>";
@@ -336,7 +336,7 @@ class ReactDatatable extends Component {
             let cellData =  ReactDOMServer.renderToStaticMarkup(column.cell(record, i));
                 cellData = this.strip(cellData);
             newRecord[column.key] = cellData;
-          } else if (record[column.key]) {
+          } else if (record[column.key]!==undefined) {
             let colValue  = record[column.key];
             colValue = (typeof colValue === "string") ? colValue.replace(/"/g, '""') : colValue;
             newRecord[column.key] = '"' + colValue + '"';