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node_modules/vue/src/platforms/web/runtime/node-ops.js

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+/* @flow */
+
+import { namespaceMap } from 'web/util/index'
+
+export function createElement (tagName: string, vnode: VNode): Element {
+  const elm = document.createElement(tagName)
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple')
+  }
+  return elm
+}
+
+export function createElementNS (namespace: string, tagName: string): Element {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+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) {
+  parentNode.insertBefore(newNode, referenceNode)
+}
+
+export function removeChild (node: Node, child: Node) {
+  node.removeChild(child)
+}
+
+export function appendChild (node: Node, child: Node) {
+  node.appendChild(child)
+}
+
+export function parentNode (node: Node): ?Node {
+  return node.parentNode
+}
+
+export function nextSibling (node: Node): ?Node {
+  return node.nextSibling
+}
+
+export function tagName (node: Element): string {
+  return node.tagName
+}
+
+export function setTextContent (node: Node, text: string) {
+  node.textContent = text
+}
+
+export function setAttribute (node: Element, key: string, val: string) {
+  node.setAttribute(key, val)
+}