🚧node.traverse()

🔰 JS ⟩ browser ⟩ DOM ⟩ types ⟩ Node ⟩ .traverse()

💾 程式

• 💾 replit: node.traverse()

// depth-first traversal
// 🔸 node.traverse()
Node.prototype.traverse = function(f){
    // do something on this node
    f(this);
    // and on its child nodes
    for(let child of this.childNodes) {
        child.traverse(f);
    } 
};

💈範例：

document.traverse(elem => console.log(elem.nodeName));

📗 參考

• JavaScript: The Definitive Guide (15.3 Scripting Documents)

👥 相關

• traversing DOM

• Node