Understanding NodeList

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A NodeList is a type of collection of nodes that is returned by some DOM methods, such as querySelectorAll. It represents a (non-live) list of nodes or elements in an HTML document. Each node in the NodeList corresponds to an element found by the specified selector.

Key characteristics of NodeList:

Node Collection: The NodeList contains DOM nodes, such as elements, attributes, or even text nodes.

Order and Indices: Nodes in the NodeList are maintained in the order they appear in the document. You can access nodes using indices, similar to an array.

Static: A NodeList is static, meaning it does not automatically update if the document changes after the list is created. If you need a dynamic collection that reflects changes in the document, you may consider using an HTMLCollection or approaches like Mutation Observers.

Here is an example of how you can use a NodeList:


In this example, document.querySelectorAll('p') returns a NodeList containing all <p> elements in the document. Then, a forEach loop is used to iterate over the paragraphs and display their content.

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