by using symbols as keys, you will be able to use the implicit conversion of a Mash via the #to_hash method to destructure (or splat) the contents of a Mash out to a block

Ruby's keyword args work a little differently than similar implementations (selectors in Objective C, for instance). The value on the right-hand side of the colon is the default, not the local name.

What if I told you there was a way to do this in Ruby?:destructure def adds(a: 1, b: 2) a + bendadds(a: 1, b: 2)# => 3adds(OpenStruct.new(a: 1, b: 2))# => 3Foo = Struct.new(:a, :b)adds(Foo.new(1,2))# => 3

The answer is no, we use a pattern where we do this, and have a `static` method for manufacturing the constructor.e.g.static from({prop1, prop2}) => new this(public prop1, public prop2)

The problem is that you what you want is actually not de-structuring at all. You’re trying to go from 'arg1', { hash2: 'bar', hash3: 'baz' }, { hash1: 'foo' } (remember that 'arg1', foo: 'bar' is just shorthand for 'arg1', { foo: 'bar' }) to 'arg1', { hash1: 'foo', hash2: 'bar', hash3: 'baz' } which is, by definition, merging (note how the surrounding structure—the hash—is still there). Whereas de-structuring goes from 'arg1', [1, 2, 3] to 'arg1', 1, 2, 3

{a: 1, b: 2, c: 3, d: 4} => {a:, b:, **rest} # a == 1, b == 2, rest == {:c=>3, :d=>4}

{a, b, ...rest} = {a: 1, b: 2, c: 3, d: 4}

we’re going to look how improved pattern matching and rightward assignment make it possible to “destructure” hashes and arrays in Ruby 3—much like how you’d accomplish it in, say, JavaScript

A reasonably clean alternative would be to map a function over the array and use destructuring in the each loop: {#each [1, 2, 3, 4].map(n => ({ n, sqr_n: n * n })) as { n, sqr_n }} {sqr_n} {sqr_n / 2}<br> {/each}

If you prefer, you can use destructuring — each cats as { id, name } — and replace cat.id and cat.name with id and name.

You can freely use destructuring and rest patterns in each blocks.

({ theme = 'secondary', label = 'Button Text', ...restProps })

props parameters and assign default values directly:

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