What is `+monthArray` in this Obj-C Doc?












2















I am reading https://developer.apple.com/library/archive/documentation/General/Conceptual/CocoaEncyclopedia/ClassClusters/ClassClusters.html#//apple_ref/doc/uid/TP40010810-CH4-SW1 and I am unfamiliar with the language construct that is:



+monthArray in the header filer and 



+ monthArray

{

    if (!sharedMonthArray) {

        sharedMonthArray = [[MonthArray alloc] init];

    }

    return sharedMonthArray;

}


in the implementation file. Is +monthArray declaring a static constructor?






objective-c







share|improve this question



























    2















    I am reading https://developer.apple.com/library/archive/documentation/General/Conceptual/CocoaEncyclopedia/ClassClusters/ClassClusters.html#//apple_ref/doc/uid/TP40010810-CH4-SW1 and I am unfamiliar with the language construct that is:



    +monthArray in the header filer and 



    + monthArray
    
{
    
    if (!sharedMonthArray) {
    
        sharedMonthArray = [[MonthArray alloc] init];
    
    }
    
    return sharedMonthArray;
    
}


    in the implementation file. Is +monthArray declaring a static constructor?






    objective-c







    share|improve this question

























      2












      2








      2








      I am reading https://developer.apple.com/library/archive/documentation/General/Conceptual/CocoaEncyclopedia/ClassClusters/ClassClusters.html#//apple_ref/doc/uid/TP40010810-CH4-SW1 and I am unfamiliar with the language construct that is:



      +monthArray in the header filer and 



      + monthArray
      
{
      
    if (!sharedMonthArray) {
      
        sharedMonthArray = [[MonthArray alloc] init];
      
    }
      
    return sharedMonthArray;
      
}


      in the implementation file. Is +monthArray declaring a static constructor?






      objective-c







      share|improve this question














      I am reading https://developer.apple.com/library/archive/documentation/General/Conceptual/CocoaEncyclopedia/ClassClusters/ClassClusters.html#//apple_ref/doc/uid/TP40010810-CH4-SW1 and I am unfamiliar with the language construct that is:



      +monthArray in the header filer and 



      + monthArray
      
{
      
    if (!sharedMonthArray) {
      
        sharedMonthArray = [[MonthArray alloc] init];
      
    }
      
    return sharedMonthArray;
      
}


      in the implementation file. Is +monthArray declaring a static constructor?






      objective-c




      objective-c






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 1 at 18:17









      Grant ParkGrant Park

      488622




      488622
























          1 Answer
          1






          active

          oldest

          votes


















          4














          It’s a class method with the id return type omitted from the declaration. Identical to



          + (id) monthArray {


          Legal but archaic style.






          share|improve this answer























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53997812%2fwhat-is-montharray-in-this-obj-c-doc%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            4














            It’s a class method with the id return type omitted from the declaration. Identical to



            + (id) monthArray {


            Legal but archaic style.






            share|improve this answer




























              4














              It’s a class method with the id return type omitted from the declaration. Identical to



              + (id) monthArray {


              Legal but archaic style.






              share|improve this answer


























                4












                4








                4







                It’s a class method with the id return type omitted from the declaration. Identical to



                + (id) monthArray {


                Legal but archaic style.






                share|improve this answer













                It’s a class method with the id return type omitted from the declaration. Identical to



                + (id) monthArray {


                Legal but archaic style.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 1 at 18:32









                mattmatt

                331k46539739




                331k46539739
































                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid …



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53997812%2fwhat-is-montharray-in-this-obj-c-doc%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    MongoDB - Not Authorized To Execute Command

                    Image
                    .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I have successfully enabled authorization on MongoDB and I have created an account on the admin database and then I created an account for my database called test. The following connection string to connect to my test database works successfully: mongo --host 192.168.17.52 --port 27017 -u user1 -p password --authenticationDatabase test Only problem I have now is, I cannot execute commands such as: show dbs. I get the following error when I try to do so: "errmsg" : "not authorized on admin to execute command { listDatabases: 1.0, lsid: { id: UUID("a1d5bc0d-bc58-485e-b232-270758a89455") }, $db: "admin...
                    Read more

                    How to fix TextFormField cause rebuild widget in Flutter

                    Image
                    .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I've got the same issue at #9280. I tried all solutions from that topic with/without GlobalKey for Scaffold and Form but the problem wasn't fixed. I tried to build a authentication form with login and signup. But the keyboard doesn't show when I tap the TextFormField at the first time. Then I try to input some letter from physical keyboard, the widget is rebuilt. Like this: login screen Nothing to be log when I run flutter run --verbose, so I logged manually. Every tapping on field, the widget called dispose -> init -> build. [√] Flutter (Channel beta, v1.0.0, on Microsoft Windows [Version 10.0.17763.195], ...
                    Read more

                    Npm cannot find a required file even through it is in the searched directory

                    Image
                    up vote 0 down vote favorite I got that error: users-Air:pdfuploader user$ npm run start client@0.1.0 start /Users/user/Documents/pdfuploader react-scripts start Could not find a required file. Name: index.html Searched in: /Users/user/Documents/pdfuploader/public npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! client@0.1.0 start: `react-scripts start` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the client@0.1.0 start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /Users/user/.npm/_logs/2018-11-19T10_19_14_555Z-debug.log users-Air:pdfuploader user$ And the file is in /Users/user/Documents/pdfuploader/public as you can see in my github repository: https://github.c...
                    Read more