Array idioms

[davidmoshal]

Hi, am wondering what the current idioms are for Vue dat array handling in vue-typescript?

i.e:

1. adding an element to an array?
2. removing an element from an array?
3. changing (updating) an element in an array?
4. removing all elements from an arry?

Thanks
David

[itsfrank]

I'm not 100% sure what you're refering to,.

If you're talking about this, it works exactly the same way and in standard vuejs. In fact, the vue typings even add autocompletion for $set and $remove.

I personally use push() and splice() as well as standard array modifications (if it is an array of objects, else i use $set). To clear an array i guess this works: this.array = []

For this, i guess whatever you would do in Javascript Vue is valid in vue-typescript

Hopefully i didn't completely miss your point.

[davidmoshal]

Seems like these work on both standard Vue arrays, and Vuex arrays changed by mutations:

    // 1) remove all: 

    arr = [] 


    // 2) remove element by ID: apparently filter is efficient:

    arr =  arr.filter(o => o[id_name] != id)


    // 3) upsert element, and have its properties update the GUI too:

    const existing = _.find(arr, id_name, id)
        if( existing )
           _.assign(existing, child)
       else
          arr.push(child)

[waratah]

Adding this purely as a comment for other searchers...

The following syntax works for Vue 2 and Typescript.

 constructor( private people: Administrator[]) {
           ... snip ....
 Replace( index: number, person: Administrator ) {
    Vue.set( this.people, index, person);
}