I am in need of assistance regarding a directive named my-custom-directive.
Here is how I am currently implementing it:
<my-component
v-model="things.value"
v-bind:error="things.error"
v-my-custom-directive>
</my-component>
Within the context of my-custom-directive, how can I determine if the my-component element has the v-bind:error attribute?
Utilizing Vnode is essential for Vue.js development.
When dealing with a DOM element, access its attributes using vnode.data.attrs (example here).
For Vue Component, retrieve props data using vnode.componentOptions.propsData (example here).
Vue.directive("focus", {
// Activated when the bound element is added to the DOM...
inserted: function(el, binding, vnode) {
if (
vnode.data &&
typeof vnode.data.attrs !== "undefined" &&
vnode.data.attrs.hasOwnProperty("error")
) {
// DOM element detected
} else if (
vnode.componentOptions &&
typeof vnode.componentOptions.propsData !== "undefined" &&
vnode.componentOptions.propsData.hasOwnProperty("error")
) {
// Vue Component detected
}
}
});
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