proposal: String.prototype.padCenter

Wed Aug 22 16:18:23 UTC 2018

It can also be quite useful in Node, to center things printed to the
terminal.

Il mer 22 ago 2018, 17:57 Naveen Chawla <naveen.chwl at gmail.com> ha scritto:

> Isn't "bluetooth printer" too niche a use case? Any other examples?
>
> On Wed, 22 Aug 2018 at 17:59 Ricardo Zorzal <ricardozorzal at hotmail.com>
> wrote:
>
>>
>> Isiah Meadows , don't have any problems in combine this two functions,
>> but if it can be done with a native functions it could pass more
>> confiability to javascript functions, avoiding polyfills, like I do.
>>
>> In the past, when we did not had padStart and padEnd, we were using some
>> polyfills functions to construct this two functions for us, then the
>> comunity looked at this features and then started to implementing it. BTW,
>> I do not know why we did not implementing this function when the padStart e
>> padEnd was developed too.
>>
>> And again, I think it's not hard to be done, but necessary. And Claude
>> Pache, thanks for your exemple.
>>
>> Naveen Chawla, yes this is the idea, as the same as the other "pad"
>> functions, and look at the exemple from Claude Pache, it can be done like
>> he coded.
>>
>> I hope you guys understending that this is necessary to growth the
>> language and make it more pratical than now.
>>
>> Perhaps has other developers searching for this solution and they seen it
>> in libs, polyfills and frameworks, but they do not like the idea to import
>> other lib in the project just to use this feature.
>>
>> And again, it seems not hard to be done.
>>
>>
>> Att,
>>
>> *Ricardo Zorzal Davila *
>> ------------------------------
>> *De:* es-discuss <es-discuss-bounces at mozilla.org> em nome de Claude
>> Pache <claude.pache at gmail.com>
>> *Enviado:* quarta-feira, 22 de agosto de 2018 04:49
>> *Para:* Naveen Chawla
>> *Cc:* es-discuss at mozilla.org
>> *Assunto:* Re: proposal: String.prototype.padCenter
>>
>> ```js
>> x.padStart((x.length + 32)/2).padEnd(32)
>> ```
>>
>> (BTW, I don’t like this habit of top-posting the reply. Please look below
>> for the question I’m answering, and read the mail backwards for more
>> context.)
>>
>> —Claude
>>
>> Le 22 août 2018 à 05:47, Naveen Chawla <naveen.chwl at gmail.com> a écrit :
>>
>> How would you combine padStart and padEnd to get the desired result? Just
>> curious, because the idea would be to create a minimum of 32 chars with the
>> original string centered inside the "padding" (if there is any)
>>
>> On Wed, 22 Aug 2018 at 07:26 Isiah Meadows <isiahmeadows at gmail.com>
>> wrote:
>>
>> What's wrong with combining `padStart` with `padEnd`? I'm not sure this
>> is worth it, since you can easily emulate it anyways (as you stated).
>> On Tue, Aug 21, 2018 at 16:44 Ricardo Zorzal <ricardozorzal at hotmail.com>
>> wrote:
>>
>> Hello guys, I here to talk about padStart, padEnd and my new proposal
>> "padCenter", I think it is not hard to develop because we already had
>> padStart and padEnd.
>>
>> I thought that we need to add one more feature to String's prototype, and
>> it is not a hard work. So the proposal is to create the
>> String.prototype.padCenter that centralize a string with a max character
>> lenght, equals we do when call the "pad" functions.
>>
>> For exemple, when we call padStart
>>
>> ```javascript
>> "MY-TEST".padStart(32)
>> //result: "                         MY-TEST"
>> ```
>>
>> and when we call padEnd:
>>
>> ```javascript
>> "MY-TEST".padEnd(32)
>> //result: "MY-TEST                         "
>> ```
>>
>> how about that:
>>
>> ```javascript
>> "MY-TEST".padCenter(32)
>> //result: "            MY-TEST            "
>> ```
>>
>> I'm searching it for a long time and I seen people talking about it in
>> different use cases. But for me it will be usefull when I need to send some
>> text data to my bluetooth printer, becouse the length of his line is 32 and
>> I need to centralize the data and adjust the line to right and left.
>>
>> I think this feature can improve the language and it will be useful for
>> other developers like me.
>>
>> Although we has libs that has an implementation of it
>> https://lodash.com/docs#pad
>> http://gabceb.github.io/underscore.string.site/#pad
>> https://vocajs.com/#pad
>> I think it can be done for native functions too
>>
>> And it is native for other languages, such as:
>>     1. PHP (
>> https://www.w3schools.com/php/showphp.asp?filename=demo_func_string_str_pad3
>> )
>>     2. Python (
>> https://docs.python.org/2/library/string.html#string.center)
>>     3. Ruby (https://ruby-doc.org/core-2.2.0/String.html#center-method)
>>     4. R (
>> https://www.rdocumentation.org/packages/stringr/versions/1.3.1/topics/str_pad
>> )
>>     5. etc...
>>
>>
>> What do you guys think ?
>>
>> ( We can call it "pad" instead of "padCenter"  haha )
>>
>>
>> Att,
>>
>> *Ricardo Zorzal Davila *
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