How to automatically determine d3.layout.tree size?

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// Step 1: Get the dimensions of the container element where you want to display the tree
const containerWidth = document.getElementById('container').clientWidth;
const containerHeight = document.getElementById('container').clientHeight;

// Step 2: Set the width and height of the SVG container element
const svg = d3.select('#container').append('svg')
    .attr('width', containerWidth)
    .attr('height', containerHeight);

// Step 3: Set the desired margins
const margin = { top: 20, right: 20, bottom: 20, left: 20 };

// Step 4: Calculate the available width and height for the tree layout
const width = containerWidth - margin.left - margin.right;
const height = containerHeight - margin.top - margin.bottom;

// Step 5: Use the calculated width and height to set the size of the d3.layout.tree
const treeLayout = d3.layout.tree()
    .size([width, height]);