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Groups > comp.lang.javascript > #38468
| From | James Kirk <noneya.invalid@gmail.com> |
|---|---|
| Newsgroups | comp.lang.javascript |
| Subject | Re: let syntax |
| Date | 2020-06-15 00:06 -0400 |
| Organization | Time Travel Tracing |
| Message-ID | <20200615000641.7bb3c5c9@james.kirk.invalid> (permalink) |
| References | <Gt-dnYgvE8ieWHvDnZ2dnUU7-QnNnZ2d@westnet.com.au> <20200614212651.513dc927@james.kirk.invalid> <sa2dndANOaaDd3vDnZ2dnUU7-IfNnZ2d@westnet.com.au> |
In Message: <sa2dndANOaaDd3vDnZ2dnUU7-IfNnZ2d@westnet.com.au>
Andrew Poulos <ap_prog@hotmail.com> wrote:
> On 15/06/2020 11:26 am, James Kirk wrote:
>> In Message: <Gt-dnYgvE8ieWHvDnZ2dnUU7-QnNnZ2d@westnet.com.au>
>> Andrew Poulos <ap_prog@hotmail.com> wrote:
[snip]
>>> let { target:el } = e;
[snip]
>>> I don't understand how the first line in "move" works. It seems
>>> that
>>> let { target:el } = e;
>>> is equivalent to
>>> let el = e.target;
>>> but how?
>> Destructuring assignment
>> https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment
> Cool, a whole new area I knew nothing about!
> In this case, why would choose one rather than the other?
personal preference, readability, modifications … no reason not to
use destructuring assignment
for example if the event type would be needed at a later time.
let { target:el, type:evtype } = e;
--
James Kirk
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let syntax Andrew Poulos <ap_prog@hotmail.com> - 2020-06-15 10:46 +1000
Re: let syntax James Kirk <noneya.invalid@gmail.com> - 2020-06-14 21:26 -0400
Re: let syntax Andrew Poulos <ap_prog@hotmail.com> - 2020-06-15 13:25 +1000
Re: let syntax James Kirk <noneya.invalid@gmail.com> - 2020-06-15 00:06 -0400
Re: let syntax Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2020-06-16 21:23 +0200
Re: let syntax Andrew Poulos <ap_prog@hotmail.com> - 2020-06-17 10:24 +1000
Re: let syntax Julio Di Egidio <julio@diegidio.name> - 2020-06-16 21:19 -0700
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