Dojo Learning notes 7. Dojo.dom

Module: Dojo.dom

Dojo.dom.isNode

Tests whether the specified object is a node

Usage Example:

dojo.dom.isNode(dojo.byId('edtTitle'));
dojo.dom.getUniqueId

Get a unique ID

Usage Example:

dojo.dom.getUniqueId();　//will return dj_unique_#
dojo.dom.firstElement = dojo.dom.getFirstChildElement

Gets the first child node under the specified node that satisfies the specified tag condition

Usage Example:

dojo.dom.firstElement(parentNode, 'SPAN');
dojo.dom.lastElement = dojo.dom.getLastChildElement

Gets the last child node under the specified node that satisfies the specified tag condition

Usage Example:

dojo.dom.lastElement(parentNode, 'SPAN');
dojo.dom.nextElement = dojo.dom.getNextSiblingElement

Gets the next child node that satisfies the specified tag condition for the specified node

Usage Example:

dojo.dom.nextElement(node, 'SPAN');
dojo.dom.prevElement = dojo.dom.getPreviousSiblingElement

Gets the child node of the specified node that satisfies the specified tag condition

Usage Example:

dojo.dom.prevElement(node, 'SPAN');
dojo.dom.moveChildren

Moves all child nodes under the specified node to the target node and returns the number of nodes moved

Usage Example:

dojo.dom.moveChildren(srcNode, destNode, true);//仅移动子节点，srcNode中的文字将被丢弃
dojo.dom.moveChildren(srcNode, destNode, false);//包括文字和子节点都将被移动到目标节点下
dojo.dom.copyChildren

Copies all child nodes under the specified node to the target node and returns the number of replicated nodes

Usage Example:

dojo.dom.moveChildren(srcNode, destNode, true);//仅复制子节点，srcNode中的文字将被忽略
dojo.dom.moveChildren(srcNode, destNode, false);//包括文字和子节点都将被复制到目标节点下
dojo.dom.removeChildren

Deletes all child nodes under the specified node and returns the number of nodes deleted

Usage Example:

Dojo.dom.moveChildren (node);

Dojo.dom.replaceChildren

Replaces all child nodes under the parent node with the specified new node

Usage Example:

dojo.dom.replaceChildren(node, newChild); //目前还不支持newChild为数组形式
dojo.dom.removeNode

Deletes the specified node

Usage Example:

dojo.dom.removeNode(node);
dojo.dom.getAncestors

Returns the collection of parent nodes for the specified node

Usage Example:

dojo.dom.getAncestors(node, null, false);//返回所有的父节点集合（包括指定的节点node）
dojo.dom.getAncestors(node, null, true);//返回最近的一个父节点
dojo.dom.getAncestors(node, function(el){/* 此处增加过滤条件 */return true}, false);//返回所有满足条件的父节点集合
dojo.dom.getAncestorsByTag