Function.prototype.partial

[Jordan Harband]

(note, it couldn't be a direct proxy to `bind` because `bind(null)`
permanently sets the "this" value (ie, `(function () { return this
}).bind(null).call([])` will return null or the global object, not the
empty array. the polyfill would be a bit trickier, and couldn't use "bind"
under the hood without changes to bind itself)

On Sun, Oct 4, 2015 at 8:06 AM, Tim Ruffles <oi at truffles.me.uk> wrote:

> It'd be nice to add Function.prototype.partial, which is exactly like
> `.bind` without the `this`-setting first argument.
>
> Adding it would have benefits:
>
> - `.bind(null, ...` is newbie confusing and ugly in functional code[1]
> - `.bind(null, ...` is a very common idiom[2]
> - `.partial` is intention revealing: it's clear you're writing functional
> code that doesn't care about `this`
>
> Adding it seems low cost, and is backwards compatible:
>
> - implementors could literally make it a proxy to `.bind` if they want to
> get it done fast
> - shimmable
> - not new functionality, just a subset of existing functionality
>
> Cheers,
>
> Tim
>
> @timruffles
>
> - [1] I've been teaching newbies Javascript/Node.js for years, and if you
> take a 'functions first' approach it's complexity you have to tell them to
> ignore
> - [2] see github -
> https://github.com/search?l=javascript&q=%22.bind%28null%22&ref=searchresults&type=Code&utf8=%E2%9C%93
>
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