I have a categories array, which is loaded once (in created hook) and then it is static all the time. I render this array values in a component template.
<template>
<ul>
<li v-for="item in myArray">{{ item }}</li>
</ul>
</template>
My data property looks (it does not include myArray - I dont want reactive binding):
data() {
return {
someReactiveData: [1, 2, 3]
};
}
My create hook:
created() {
// ...
this.myArray = ["value 1", "value 2"];
// ...
}
Problem is, that Vue throw error - I cant use myArray in a template, because this variable is not created when the DOM is created - mounted.
So how to do this? Or where can be stored component constants?
Vue sets all the properties in the data
option to setters/getters to make them reactive. See Reactivity in depth
Since you want myArray
to be static you can create it as a custom option which can be accessed using vm.$options
export default{
data() {
return{
someReactiveData: [1, 2, 3]
}
},
//custom option name myArray
myArray: null,
created() {
//access the custom option using $options
this.$options.myArray = ["value 1", "value 2"];
}
}
you can iterate over this custom options in your template as follows:
<template>
<ul>
<li v-for="item in $options.myArray">{{ item }}</li>
</ul>
</template>
Here is the fiddle