Vuejs - Assigning values in a constant

Question

I am reviewing an app build in Vuejs (I am not a vue developer), so be patient with me.

I found this line of code:

const {property, $rxFirebase: {actions: {properties}}} = this

I guess this works as in other languages. "This" is assigning values to the object in the left.

I am trying to read also {sources: {properties}}, so I have added the code like this:

const {property, $rxFirebase: {actions: {properties}, sources: {properties}}} = this

But when I build it, I get an error:

Module build failed: Duplicate declaration "properties"

Any ideas?

Max Sinev · Accepted Answer · 2018-07-27 23:27:48Z

1

This is not just assignment its destructuring assignment. This line:

const {property, $rxFirebase: {actions: {properties}}} = this

is equivalent to

const property = this.property, properties = this.$rxFirebase.actions.properties;

So you can not add another properties variable because it is already declared. You should add different name for second properties declaration, like this:

const {property, $rxFirebase: {actions: {properties}, sources: {properties: myProperties }}} = this; // where myProperties some name for variable
console.log(myProperties === this.$rxFirebase.sources.properties); // true

answered Jul 27, 2018 at 23:27

Max Sinev

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1 Comment

Eduardo Over a year ago

can you help me with this question: stackoverflow.com/questions/51549695/… it seems a long question, but actually is a direct question, how to get the properiest list count. I just show the code related before asking that.

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