Can someone explain how the keyword 'this' is able to access tasks that are not within the same object?
anyobject = {
template: '#task-list',
props: {
tasks: {default: []}
},
data() {
return {
newTask: ''
};
},
computed: {
incomplete() {
return this.tasks.length; // I'm confused about how this works in this context
}
},
It is a well-known fact that in every Vue application, a new Vue instance is created initially, and unless specified otherwise, all declared objects are part of the same instance.
Within this instance, all properties from the data object are added to Vue's reactivity system as outlined in the documentation. Whenever these property values change, the view updates itself accordingly.
This also applies to computed properties. For example, the computed property we have defined here is incomplete(). The provided function will serve as the getter for the property vueinstance.incomplete.
this can access external object properties due to Vue utilizing Proxy, which allows this.$data.property to be accessed simply as this.property.
This feature of Vue simplifies tasks and streamlines processes once one becomes accustomed to it.
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