bd028579
 易尊强
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export function createTextNode(text: string): Text {
return document.createTextNode(text);
}
export function createComment(text: string): Comment {
return document.createComment(text);
}
export function insertBefore(
parentNode: Node,
newNode: Node,
referenceNode: Node | null
): void {
parentNode.insertBefore(newNode, referenceNode);
}
export function removeChild(node: Node, child: Node): void {
node.removeChild(child);
}
export function appendChild(node: Node, child: Node): void {
node.appendChild(child);
}
export function parentNode(node: Node): Node | null {
return node.parentNode;
}
export function nextSibling(node: Node): Node | null {
return node.nextSibling;
}
export function tagName(elm: Element): string {
return elm.tagName;
}
export function setTextContent(node: Node, text: string | null): void {
node.textContent = text;
}
export function getTextContent(node: Node): string | null {
return node.textContent;
}
export function isElement(node: Node): node is Element {
return node.nodeType === 1;
}
export function isText(node: Node): node is Text {
return node.nodeType === 3;
}
export function isComment(node: Node): node is Comment {
return node.nodeType === 8;
}
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