angular material table header style code example

Example 1: mat-table style header

mat-table style header

Example 2: mat-header-cell meterial style

const initialSelection = [];
const allowMultiSelect = true;
this.selection = new SelectionModel<MyDataType>(allowMultiSelect, initialSelection);

Example 3: mat-header-cell meterial style

<table mat-table [dataSource]="myDataArray">
  ...
</table>