.reverse would only be reasonable for a subset of characters supported by
Unicode. Its primary cited use case is for a particular educational
example, when there are probably thousands of similar examples of educational
snippets that would be rarely used in a production environment. Given that,
it would be far better for those people who really need it to just provide
that to their students as a provided function for the sake of that example.
Mark
On Sun, Mar 18, 2018 at 8:56 AM, Grigory Hatsevich <g.hatsev...@gmail.com>
wrote:
> "This would remove the challenge and actively worsen their learning
> process" -- this is not true. You can see it e.g. by looking at the
> specific task I was talking about:
>
> "Given a string, find the shortest possible string which can be achieved
> by adding characters to the end of initial string to make it a palindrome."
>
> This is my code for this task:
>
> function buildPalindrome(s){
> String.prototype.reverse=function(){
> return this.split('').reverse().join('')
> }
>
> function isPalindrome(s){
> return s===s.reverse()
> }
> for (i=0;i<s.length;i++){
> first=s.slice(0,i);
> rest=s.slice(i);
> if(isPalindrome(rest)){
> return s+first.reverse()
> }
> }
> }
>
>
> As you see, the essence of this challenge is not in the process of
> reversing a string. Having a reverse() method just makes the code more
> readable -- comparing to alternative when one would have to write
> .split('').reverse().join('') each time instead of just .reverse()
>
> On Sun, Mar 18, 2018 at 2:38 PM, Frederick Stark <coagm...@gmail.com>
> wrote:
>
>> The point of a coding task for a beginner is to practice their problem
>> solving skills to solve the task. This would remove the challenge and
>> actively worsen their learning process
>>
>>
>> On Mar 18 2018, at 6:26 pm, Grigory Hatsevich <g.hatsev...@gmail.com>
>> wrote:
>>
>>
>> My use case is solving coding tasks about palindromes on codefights.com.
>> Not sure if that counts as "real-world", but probably a lot of beginning
>> developers encounter such tasks at least once.
>>
>>
>>
>>
>> On Sun, 18 Mar 2018 06:41:46 +0700, Mathias Bynens <math...@qiwi.be>
>> wrote:
>>
>> So far no one has provided a real-world use case.
>>
>> On Mar 18, 2018 10:15, "Mike Samuel" <mikesam...@gmail.com
>> <https://link.getmailspring.com/link/1521358598.local-593d9031-9a3d-v1.1.5-5834c...@getmailspring.com/0?redirect=mailto%3Amikesamuel%40gmail.com&recipient=Zy5oYXRzZXZpY2hAZ21haWwuY29t>>
>> wrote:
>>
>> Previous discussion: https://esdiscuss.org/topic/wi
>> ki-updates-for-string-number-and-math-libraries#content-1
>> <https://link.getmailspring.com/link/1521358598.local-593d9031-9a3d-v1.1.5-5834c...@getmailspring.com/1?redirect=https%3A%2F%2Fesdiscuss.org%2Ftopic%2Fwiki-updates-for-string-number-and-math-libraries%23content-1&recipient=Zy5oYXRzZXZpY2hAZ21haWwuY29t>
>>
>> """
>> String.prototype.reverse(), as proposed, corrupts supplementary
>> characters. Clause 6 of Ecma-262 redefines the word "character" as "a
>> 16-bit unsigned value used to represent a single 16-bit unit of text", that
>> is, a UTF-16 code unit. In contrast, the phrase "Unicode character" is used
>> for Unicode code points. For reverse(), this means that the proposed spec
>> will reverse the sequence of the two UTF-16 code units representing a
>> supplementary character, resulting in corruption. If this function is
>> really needed (is it? for what?), it should preserve the order of surrogate
>> pairs, as does java.lang.StringBuilder.reverse:
>> download.oracle.com/javase/7/docs/api/java/lang/StringBui
>> lder.html#reverse()
>> <https://link.getmailspring.com/link/1521358598.local-593d9031-9a3d-v1.1.5-5834c...@getmailspring.com/2?redirect=http%3A%2F%2Fdownload.oracle.com%2Fjavase%2F7%2Fdocs%2Fapi%2Fjava%2Flang%2FStringBuilder.html%23reverse()&recipient=Zy5oYXRzZXZpY2hAZ21haWwuY29t>
>> """
>>
>> On Sat, Mar 17, 2018 at 1:41 PM, Grigory Hatsevich <g.hatsev...@gmail.com
>> <https://link.getmailspring.com/link/1521358598.local-593d9031-9a3d-v1.1.5-5834c...@getmailspring.com/3?redirect=mailto%3Ag.hatsevich%40gmail.com&recipient=Zy5oYXRzZXZpY2hAZ21haWwuY29t>>
>> wrote:
>>
>> Hi! I would propose to add reverse() method to strings. Something
>> equivalent to the following:
>>
>> String.prototype.reverse = function(){
>> return this.split('').reverse().join('')
>> }
>>
>> It seems natural to have such method. Why not?
>>
>>
>>
>>
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>>
>>
>>
>>
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