Destructure / Easy Object Composition

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•

JosiahBryan
Hey guys!

It seems that destructuring assignment and composition is not supported in Espurino...is that true? Or is there a way to enable it? (Destruturing: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment)

For example, this doesn't work:
```
const someObject = { a: 1, b: 2 }
const { a, b } = someObject; // syntax errors on this line
const a = someObject.a; // ...but this does work
```
Similarly, this doesn't work:
```
const a = 1, b = 2;
const someObject = { a, b }; // syntax errors here
someObject.a = a; // ... but this works
```
Any plans to support these styles of operations?

•

Robin in reply to @JosiahBryan
Sat 2021.01.30

Hi @JosiahBryan,

'destructuring assignment and composition is not supported in Espurino'

That would be correct according to this reference beneath table ES6

http://www.espruino.com/Features

From the MDN link in post#1

'The destructuring assignment syntax is a JavaScript expression that makes it possible to unpack values from arrays, or properties from objects, into distinct variables.'

Were you after the exact Destruturing syntax shown in post #1, or would a similar JSON object notation work for the task at hand? ref: properties from objects
```
const someObject = { 'a': 1, 'b': 2 };
const a = someObject.a;
console.log ( "Value a: " + a );

// output
>Value a: 1
```
Note that use of dump() will show the same as:
```
const someObject = { a: 1, b: 2 };
const a = someObject.a;
console.log ( "Value a: " + a );

// output
>Value a: 1
```
re: 'Any plans to support these styles of operations?'

We'll need to defer to @Gordon for the official plan. . . .

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