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A virtual-dom for TypeScript
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<a href="../../index.html">all files</a> / <a href="index.html">src/patchVNode/</a> patchVNodeChildren.ts
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { ElementVNode, VNode } from '../'
import { ModuleCallbacks } from '../modules/ModuleCallbacks'
import { addVNodes } from '../addVNodes'
import { removeVNodes } from '../removeVNodes'
import { updateChildren } from '../updateChildren'
export function patchVNodeChildren(
formerVNode: VNode,
vNode: VNode,
moduleCallbacks: ModuleCallbacks,
insertedVNodeQueue: Array<ElementVNode>)
{
const element = vNode.element as Element
const formerChildren = formerVNode.children as Array<ElementVNode>
const children = vNode.children as Array<ElementVNode>
if (formerVNode.text)
element.textContent = ''
if (formerChildren && children && formerChildren !== children)
updateChildren(element, formerChildren, children, moduleCallbacks, insertedVNodeQueue)
else if (children)
addVNodes(element, null, children, 0, endIndex(children), moduleCallbacks, insertedVNodeQueue)
else if (formerChildren)
removeVNodes(element, formerChildren, 0, endIndex(formerChildren), moduleCallbacks)
}
function endIndex(vNodeChildren: Array<ElementVNode>) {
return vNodeChildren.length - 1
}
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