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• Dojo DOM Functions

dojo/dom

This module provides some of basic DOM functions. These include:

• byId(id) – Find the single DOM node with the given id.

• isDescendant(node, ancestor) – Returns true if the node is a descendant of

ancestor.

dojo/dom-construct

• toDom(htmlString, document) – Builds a DOM tree from the HTML string and

returns the DOM that is the root of that tree.

• place(node, refNode, position)

◦ before

◦ after

◦ replace

◦ only

◦ first

◦ last

• create(tag, attrs, refNode, position)

• empty(node) – Delete all the children of the node.

• destroy(node) – Delete all the children of the node and the node itself.

dojo/query

The dojo/query module provides a powerful way to search for nodes within the DOM tree. The

module itself is a single function. The syntax for the function is:

query(selector, domTreeRoot)

where

• selector – A CSS selector pattern.

• domTreeRoot – An optional root in a DOM tree to start the search

The result from the query is a dojo NodeList object representing a list of nodes that match the

selector. Realize that the NodeList may be empty.

The selector is a String that describes the CSS pattern used to determine which nodes to return. The

pattern is passed to a "pattern matching engine" that interprets the pattern and scans the DOM tree

looking for matches. The patterns are:

Pattern Description

* Any element.

E Any element of type E.

E F An F element that is a descendant of an E element.

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