What are custom directives in Vue.js?

What are custom directives in Vue.js?

Custom directives in Vue.js are special markers in the DOM that tell the library to attach specific behavior to the DOM elements.

Can you give me an example of how to create a custom directive?

Sure! You can create a custom directive using Vue.directive. For example:

Vue.directive('focus', {
  // When the bound element is inserted into the DOM...
  inserted: function (el) {
    // Focus the element
    el.focus()
  }
})

How do I use this custom directive in my template?

You can use the custom directive in your template like this:

<input v-focus />

Are there any built-in directives I should know about?

Yes, Vue has several built-in directives like v-if, v-for, v-bind, and v-model that are very useful for common tasks.