How to add configuration and packages mapping to ionic 4?
System.config({
paths: {
'npm:': './node_modules/',
'syncfusion:': 'npm:@syncfusion/'
},
map: {
app: 'app',
"@syncfusion/ej2-base": "syncfusion:ej2-base/dist/ej2-base.umd.min.js",
"@syncfusion/ej2-data": "syncfusion:ej2-data/dist/ej2-data.umd.min.js",
"@syncfusion/ej2-inputs": "syncfusion:ej2-inputs/dist/ej2-inputs.umd.min.js",
"@syncfusion/ej2-popups": "syncfusion:ej2-popups/dist/ej2-popups.umd.min.js",
"@syncfusion/ej2-buttons": "syncfusion:ej2-buttons/dist/ej2-buttons.umd.min.js",
"@syncfusion/ej2-splitbuttons": "syncfusion:ej2-splitbuttons/dist/ej2-splitbuttons.umd.min.js",
"@syncfusion/ej2-lists": "syncfusion:ej2-lists/dist/ej2-lists.umd.min.js",
"@syncfusion/ej2-calendars": "syncfusion:ej2-calendars/dist/ej2-calendars.umd.min.js",
},
packages: {
'app': { main: 'app', defaultExtension: 'js' }
}
});