mostly-dom
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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> updateElement.ts
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21</td><td class="line-coverage quiet"><span class="cline-any cline-yes">1×</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { ElementVNode, SCOPE_ATTRIBUTE, VNode } from '../'
export function updateElement(formerVNode: VNode, vNode: VNode): ElementVNode {
const node = vNode.element = formerVNode.element as Node
if (isElement(node)) {
const { scope } = vNode
if (scope)
node.setAttribute(SCOPE_ATTRIBUTE, scope)
else
node.removeAttribute(SCOPE_ATTRIBUTE)
}
return vNode as ElementVNode
}
function isElement(node: Node): node is Element {
return typeof (node as Element).setAttribute === 'function'
}
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