sheetjs-clone/demos/angular2/README.md

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2017-06-21 23:10:36 +00:00
# Angular 2+
The library can be imported directly from TS code with:
```typescript
import * as XLSX from 'xlsx';
```
This demo uses an array of arrays as the core data structure. The component
template includes a file input element, a table that updates based on the data,
and a button to export the data.
## Switching between Angular versions
Modules that work with Angular 2 largely work as-is with Angular 4. Switching
between versions is mostly a matter of installing the correct version of the
core and associated modules. This demo includes a `package.json` for Angular 2
and another `package.json` for Angular 4.
Switching to Angular 2 is as simple as:
```bash
$ cp package.json-angular2 package.json
$ npm install
$ ng serve
```
Switching to Angular 4 is as simple as:
```bash
$ cp package.json-angular4 package.json
$ npm install
$ ng serve
```
## XLSX Symlink
In this tree, `node_modules/xlsx` is a symlink pointing back to the root. This
enables testing the development version of the library. In order to use this
demo in other applications, add the `xlsx` dependency:
```bash
$ npm install --save xlsx
```
## SystemJS Configuration
The default angular-cli configuration requires no additional configuration.
Some deployments use the SystemJS loader, which does require configuration. The
SystemJS example shows the required meta and map settings:
```js
SystemJS.config({
meta: {
'xlsx': {
exports: 'XLSX' // <-- tell SystemJS to expose the XLSX variable
}
},
map: {
'xlsx': 'xlsx.full.min.js', // <-- make sure xlsx.full.min.js is in same dir
'fs': '', // <--|
'crypto': '', // <--| suppress native node modules
'stream': '' // <--|
}
});
```