Ah yeah true there is some overlap there thanks. On 26 July 2017 at 14:19, T.J. Crowder <[email protected]> wrote:
> I think you're talking about named parameters, or close enough anyway. > Most recent discussion of named parameters (originally just "is there > discussion of them?" but it went from there): > https://esdiscuss.org/topic/named-paramters > > Others probably as well if you search back further in the archives and > meeting notes. > > Note also overlap with parameter destructuring. It's a totally different > thing, but can be used for some of the same use cases (long argument lists > in particular). > > -- T.J. Crowder > > On Wed, Jul 26, 2017 at 2:09 PM, Gareth Heyes < > [email protected]> wrote: > > Hi all >> >> I propose a new syntax for defining function argument hints. If you have >> a lot of arguments in a function it can be difficult to remember which >> argument is which. Using a hint allows you to easily see the argument >> required and can prevent you from passing an incorrect argument. >> >> It would work like this: >> ```javascript >> function x(domNode, obj, someFlag) { >> } >> >> //here are the argument hints >> x(domNode:dom, obj: o, someFlag: true) >> ``` >> >> So here the js engine looks up the argument hint and compares it to the >> function definition. If the hint does not match the function argument in >> the definition then a exception is thrown. >> >> ```javascript >> x(obj: o, someFlag: true) //error "obj" hint does not match "domNode" >> hint. >> ``` >> >> The hint easily allow you to see what argument you are using without >> having to look at the function definition and also prevent you passing an >> incorrect argument. >> >> Cheers >> Gareth >> >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> >> >
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