angular material datepicker range get value
// Template
<mat-form-field appearance="standard">
<mat-label>{{reportField.value.label}}</mat-label>
<mat-date-range-input [rangePicker]="dateRangePicker">
<input matStartDate
placeholder="Start date"
#dateRangeStart>
<input matEndDate
placeholder="End date"
#dateRangeEnd
(dateChange)="dateRangeChange(dateRangeStart, dateRangeEnd)">
</mat-date-range-input>
<mat-datepicker-toggle matPrefix
[for]="dateRangePicker">
</mat-datepicker-toggle>
<mat-date-range-picker #dateRangePicker></mat-date-range-picker>
</mat-form-field>