Task: traverse a tree with output text with indentation (recursive traversal of a nested list)

To perform a recursive tree traversal with indented text output, you can use a function that takes a node and a level of depth. At each level, add indentation, for example, using spaces or tabs.

Here's an example in JavaScript for a nested list of objects:

function printTree(node, indent = 0) {
  console.log(' '.repeat(indent) + node.text);
  if (node.children) {
    node.children.forEach(child => printTree(child, indent + 2));
  }
}

// Example data
const tree = {
  text: 'root',
  children: [
    { text: 'child1' },
    { text: 'child2', children: [
      { text: 'grandchild1' },
      { text: 'grandchild2' }
    ]}
  ]
};

printTree(tree);

The output will have indents reflecting the depth of nesting:

root
  child1
  child2
    grandchild1
    grandchild2

This approach is versatile and easily adaptable to different structures and output formats.