Search number between range

Hello guys,

I'm trying to implement a advanced search field in a column where it returns the results between two given inputs:

```

GO
```

```
amountRange(beginValue: string, endValue: string){
if(!beginValue && !endValue){
this.source = new LocalDataSource(this.data);
}else{
this.source.addFilter([
{
field: 'amount',
search: [beginValue, endValue],
filter:{

}
}
], false);
}
}
```

Any ideias how to implement filter function? Thanks :)