Function patchProperty

index.js:71–96

(node, key, oldValue, newValue, listener, isSvg)

var getKey = (vdom) => (vdom == null ? vdom : vdom.key)

var patchProperty = (node, key, oldValue, newValue, listener, isSvg) => {
  if (key === "style") {
    for (var k in { ...oldValue, ...newValue }) {
      oldValue = newValue == null || newValue[k] == null ? "" : newValue[k]
      if (k[0] === "-") {
        node[key].setProperty(k, oldValue)
      } else {
        node[key][k] = oldValue
      }
    }
  } else if (key[0] === "o" && key[1] === "n") {
    if (
      !((node.events || (node.events = {}))[(key = key.slice(2))] = newValue)
    ) {
      node.removeEventListener(key, listener)
    } else if (!oldValue) {
      node.addEventListener(key, listener)
    }
  } else if (!isSvg && key !== "list" && key !== "form" && key in node) {
    node[key] = newValue == null ? "" : newValue
  } else if (newValue == null || newValue === false) {
    node.removeAttribute(key)
  } else {
    node.setAttribute(key, newValue)
  }
}

var createNode = (vdom, listener, isSvg) => {
  var props = vdom.props