What does this in vue mean?

In Vue, the reference of this depends on the context object: in a component instance, this refers to the current component instance. In an event handler, this refers to the event's target element. In a custom directive, this refers to the context object in the directive function. In in-template methods, this refers to the current component instance.

this in Vue

In Vue.js,this The value ofdepends on the context object of the current context, which usually refers to:

Component instance

Whenthisis used within a component , it refers to the current component instance. This allows the component to access its:

• Data
• Methods
• Computed properties
• Lifecycle hooks

For example , in the following component,this.messagerefers to themessagedata property of the component instance:

Event handler

Whenthisis used in an event handler, it refers to thetargetelement of the event. For example, in the following code,thisrefers to the button element:

Custom Directive

Whenthisis in the self When used within a definition directive, it refers to the context object in the directive's bind, inserted, or update function. This allows the directive to access:

• Bound elements
• Properties attached to the element
• Vue instance (viathis.vm)

Intra-template methods

In internal template methods,thisrefers to the current component instance. This allows the component's data and methods to be accessed in the template just like within the component script. For example, the following code calls the component'sgreet()method in the template:

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