将Ag-grid v28转译为ES2015

1. 安装相关依赖包：

npm install babel-core babel-loader babel-preset-env --save-dev

2. 在webpack配置文件中增加babel-loader：

module: {
    rules: [
        {
            test: /\.js$/,
            exclude: /node_modules/,
            use: {
                loader: 'babel-loader',
                options: {
                    presets: ['env']
                }
            }
        }
    ]
}

3. 在应用程序代码中导入Ag-grid：

import {Grid, GridOptions} from 'ag-grid/main'

4. 使用Ag-grid：

var gridOptions = {};
var columnDefs = [
    {headerName: "Make", field: "make"},
    {headerName: "Model", field: "model"},
    {headerName: "Price", field: "price"}
];
var rowData = [
    {make: "Toyota", model: "Celica", price: 35000},
    {make: "Ford", model: "Mondeo", price: 32000},
    {make: "Porsche", model: "Boxter", price: 72000}
];
gridOptions.columnDefs = columnDefs;
gridOptions.rowData = rowData;
var eGridDiv = document.querySelector('#myGrid');
new Grid(eGridDiv, gridOptions);