Error TS2339: property ‘rows’ does not exist on type ‘htmlel

Question

I work on angular 7

when loop to table html and compile i get error

95% emitting CopyPlugin
ERROR in src/app/Pages/part-compare/part-compare.component.ts(25,38): error TS2339: Property 'rows' does not exist on type 'HTMLElement'.
src/app/Pages/part-compare/part-compare.component.ts(27,26): error TS2339:
Property 'rows' does not exist on type 'HTMLElement'.

How to solve this error please ?

What I have tried:

var table = document.getElementById("CompareParts");
for (var i = 1, row; row = table.rows[i]; i++) {
for (var j = 0, col; col = row.cells[j]; j++) {
var Cell = table.rows[i].cells
this.ACells.push(Cell);
}
}
thisthis.length=this.ACells.length
for (var x = 0; x < this.ACells.length; x++) {
this.ARows.push(this.ACells[x]);