destructuring assignment of array stored in object property

Question

say I have an object:

{ foo: 1, bar: 'a', baz: [1,2,3] }

how to assign the value of baz to get the head and the tail of the array?

I mean so that the effect is the same as that of the code below, except for I do not want to use the extra variable baz:

{ baz } = obj;
[head, ...tail] = baz;

I know I can say [head, ...tail] = obj.baz but my question is about the syntax.

thefourtheye · Accepted Answer · 2016-01-13 04:43:12Z

5

You can for instance do

let {baz: [head, ...tail]} = obj;

by combining the patterns together.

thefourtheye

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answered Jan 13, 2016 at 4:41

loganfsmyth

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