Memory Management

As we said before the h returns a pointer to a VNode, this means that the memory have to be deleted manually. By default asm-dom automatically delete the old vnode from memory when patch (or toHTML) is called. However, if you want to create a vnode that is not patched, or if you want to manually manage this aspect (setting clearMemory = false in the Config object to pass to the init function), you have to delete it manually.

VNode* vnode1 = h("div");
VNode* vnode2 = h("div", Children {
  h("span")
});
patch(vnode1, vnode2); // vnode1 automatically deleted

VNode* child1 = h(std::string("span"), "child 1");
VNode* child2 = h(std::string("span"), "child 2");
VNode* vnode = h("span", Children {
  child1,
  child2,
});
deleteVNode(vnode); // manually delete vnode, child1 and child2 from memory