Function assertMatrixElements

src/assert.ts:13–20

(matrix: Matrix, name: string, indices: [number, number?][])

}

export function assertMatrixElements(matrix: Matrix, name: string, indices: [number, number?][]): void {
  for (const [row, col] of indices) {
    assertNotNull(matrix[row], `Row ${name}[${row}][${col}]`);
    if (col !== undefined) {
      assertNotNull(matrix[row]![col], `Col ${name}[${row}][${col}]`);
    }
  }
}

export function assertValidMatrix(a:Matrix,aName:string):void{
    if(!a[0] || !a.length){