If you're starting with a DOM element, check for a __vue__ property on that element. Any Vue View Models (components, VMs created by v-repeat usage) will have this property.
You can use the "Inspect Element" feature in your browsers developer console (at least in Firefox and Chrome) to view the DOM properties.
Since in Vue 2.0, no solution seems available, a clean solution that I found is to create a vue-id attribute, and also set it on the template. Then on created and beforeDestroy lifecycle these instances are updated on the global object.
Since v-ref is no longer a directive, but a special attribute, it can also be dynamically defined. This is especially useful in combination with v-for.
From the template above, if you have ListItem component, that has ProductItem as it's root, and you try $0.__vue__ in console the result unexpectedly would be the ListItem instance.
Here I got a solution to select the lowest level component (ProductItem in this case).
Do whatever you want with component. Access data. Do changes. Run exposed methods from e2e.
Bonus feature
If you want more, you can just use $0.__vue__.$parent. Meaning if 3 components share the same dom node, you'll have to write $0.__vue__.$parent.$parent to get the main component. This approach is less laconic, but gives better control.
Use this.$el to get the HTMLElement the instance/component was mounted to
From an HTMLElement:
Use .__vue__ from the HTMLElement
E.g. var vueInstance = document.getElementById('app').__vue__;
Having a VNode in a variable called vnode you can:
use vnode.elm to get the element that VNode was rendered to
use vnode.context to get the VueComponent instance that VNode's component was declared (this usually returns the parent component, but may surprise you when using slots.
use vnode.componentInstance to get the Actual VueComponent instance that VNode is about
Vue.config.productionTip = false; // disable developer version warning
console.log('-------------------')
Vue.component('my-component', {
template: `<input>`,
mounted: function() {
console.log('[my-component] is mounted at element:', this.$el);
}
});
Vue.directive('customdirective', {
bind: function (el, binding, vnode) {
console.log('[DIRECTIVE] My Element is:', vnode.elm);
console.log('[DIRECTIVE] My componentInstance is:', vnode.componentInstance);
console.log('[DIRECTIVE] My context is:', vnode.context);
// some properties, such as $el, may take an extra tick to be set, thus you need to...
Vue.nextTick(() => console.log('[DIRECTIVE][AFTER TICK] My context is:', vnode.context.$el))
}
})
new Vue({
el: '#app',
mounted: function() {
console.log('[ROOT] This Vue instance is mounted at element:', this.$el);
console.log('[ROOT] From the element to the Vue instance:', document.getElementById('app').__vue__);
console.log('[ROOT] Vue component instance of my-component:', document.querySelector('input').__vue__);
}
})
I needed to create a navbar and collapse the menu item when clicked outside. I created a click listener on windows in mounted life cycle hook as follows