Array.prototype.joinWith(iterable)

Naveen Chawla naveen.chwl at gmail.com
Thu Aug 15 17:39:25 UTC 2019


"weave"? (I've likely missed the purpose of the method)

On Thu, 15 Aug 2019, 18:12 Andrea Giammarchi, <andrea.giammarchi at gmail.com>
wrote:

> That;s not useful for template literals tags though
>
> _.zip(['a', 'b', 'c'], [1, 2]);
> [["a", 1], ["b", 2], ["c", undefined]]
>
> it basically does nothing I've proposed ... any other name suggestion?
>
> On Thu, Aug 15, 2019 at 3:40 PM Michał Wadas <michalwadas at gmail.com>
> wrote:
>
>> https://lodash.com/docs/#zip
>> https://docs.python.org/3/library/functions.html#zip
>>
>> On Thu, 15 Aug 2019, 15:34 Andrea Giammarchi, <
>> andrea.giammarchi at gmail.com> wrote:
>>
>>>
>>>    1. the suggested name is just ... suggested, I don't have strong
>>>    opinion on it, it just `join` values through other values
>>>    2. what's `Array.zip` ? I've no idea
>>>
>>>
>>> On Thu, Aug 15, 2019 at 12:53 PM Michał Wadas <michalwadas at gmail.com>
>>> wrote:
>>>
>>>> I would rather see Array.zip, it covers this use case.
>>>>
>>>> On Thu, 15 Aug 2019, 10:50 Andrea Giammarchi, <
>>>> andrea.giammarchi at gmail.com> wrote:
>>>>
>>>>>
>>>>> I wonder if there's any interest in adding another handy Array method
>>>>> as joinWith could be:
>>>>>
>>>>> ```js
>>>>> // proposal example
>>>>> Array.prototype.joinWith = function (values) {
>>>>>   const {length} = this;
>>>>>   if (length < 2)
>>>>>     return this.join('');
>>>>>   const out = [this[0]];
>>>>>   const len = values.length;
>>>>>   for (let i = 1; i < length; i++) {
>>>>>     console.log(i, len);
>>>>>     out.push(values[(i - 1) % len], this[i]);
>>>>>   }
>>>>>   return out.join('');
>>>>> };
>>>>> ```
>>>>>
>>>>> The goal is to simplify joining array entries through not the same
>>>>> value, example:
>>>>>
>>>>> ```js
>>>>> console.log(['a', 'b', 'c', 'd'].joinWith([1, 2]));
>>>>> // a1b2c1d
>>>>>
>>>>> function tag2str(template, ...values) {
>>>>>   return template.joinWith(values);
>>>>> }
>>>>>
>>>>> tag2str`a${1}b${2}c`;
>>>>> // "a1b2c"
>>>>> ```
>>>>>
>>>>> Throughts?
>>>>> _______________________________________________
>>>>> es-discuss mailing list
>>>>> es-discuss at mozilla.org
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>>>>>
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