A simple grid computed with canvas-sketch.

grid.js

const canvasSketch = require("canvas-sketch");

canvasSketch(
    ({ context, width, height }) => {
        context.fillStyle = "white";
        context.fillRect(0, 0, width, height);

        const cell = 10;
        const cols = Math.floor(width / cell);
        const rows = Math.floor(height / cell);
        const numCells = cols * rows;

        const cellWidth = width / cols;
        const cellHeight = height / rows;

        return ({ context }) => {
            for (let c = 0; c < numCells; c++) {
                const col = c % cols;
                const row = Math.floor(c / cols);

                context.save();
                context.translate(col * cellWidth, row * cellHeight);
                context.beginPath();
                context.rect(0, 0, cellWidth, cellHeight);
                context.stroke();
                context.restore();
            }
        };
    },
    {}
);