Vuejs: Lifecycle Hooks

Each Vue component instance goes through a series of initialization steps when it’s created – for example, it needs to set up data observation, compile the template, mount the instance to the DOM, and update the DOM when data changes. Along the way, it also runs functions called lifecycle hooks, giving users the opportunity to add their own code at specific stages.

Registering Lifecycle Hooks

For example, the mounted hook can be used to run code after the component has finished the initial rendering and created the DOM nodes:

export default {
  mounted() {
    console.log(`the component is now mounted.`)

Lifecycle Diagram

Consult the Lifecycle Hooks API reference for details on all lifecycle hooks and their respective use cases.

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