Import hooks into React Typescript












0















I am trying to implement hooks into a React (^16.6.0) application using TypeScript



import * as React, {useState}  from 'react';


Any idea what is the right syntax for this import?










share|improve this question





























    0















    I am trying to implement hooks into a React (^16.6.0) application using TypeScript



    import * as React, {useState}  from 'react';


    Any idea what is the right syntax for this import?










    share|improve this question



























      0












      0








      0








      I am trying to implement hooks into a React (^16.6.0) application using TypeScript



      import * as React, {useState}  from 'react';


      Any idea what is the right syntax for this import?










      share|improve this question
















      I am trying to implement hooks into a React (^16.6.0) application using TypeScript



      import * as React, {useState}  from 'react';


      Any idea what is the right syntax for this import?







      reactjs react-hooks






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 12 at 19:41









      skyboyer

      3,73311129




      3,73311129










      asked Nov 21 '18 at 14:29









      Alexandru PopaAlexandru Popa

      155




      155
























          1 Answer
          1






          active

          oldest

          votes


















          0














          import supports a limited set of syntax variations.



          It can be:



          import React, {useState}  from 'react';


          The downside is that entire library is imported, because React is default export and cannot be tree-shaken. Since the presence of React import is needed to use JSX syntax, a more efficient way is:



          import * as React from 'react';
          import {useState} from 'react';


          Hooks were introduced in pre-release React 16.7. react version constraint should be ^16.7.0-alpha.0, @types/react should be ^16.7.0.






          share|improve this answer


























          • Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

            – Alexandru Popa
            Nov 21 '18 at 15:15













          • Hooks are 16.7, not 16.6. I updated the answer.

            – estus
            Nov 21 '18 at 15:26













          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%2f53414287%2fimport-hooks-into-react-typescript%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









          0














          import supports a limited set of syntax variations.



          It can be:



          import React, {useState}  from 'react';


          The downside is that entire library is imported, because React is default export and cannot be tree-shaken. Since the presence of React import is needed to use JSX syntax, a more efficient way is:



          import * as React from 'react';
          import {useState} from 'react';


          Hooks were introduced in pre-release React 16.7. react version constraint should be ^16.7.0-alpha.0, @types/react should be ^16.7.0.






          share|improve this answer


























          • Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

            – Alexandru Popa
            Nov 21 '18 at 15:15













          • Hooks are 16.7, not 16.6. I updated the answer.

            – estus
            Nov 21 '18 at 15:26


















          0














          import supports a limited set of syntax variations.



          It can be:



          import React, {useState}  from 'react';


          The downside is that entire library is imported, because React is default export and cannot be tree-shaken. Since the presence of React import is needed to use JSX syntax, a more efficient way is:



          import * as React from 'react';
          import {useState} from 'react';


          Hooks were introduced in pre-release React 16.7. react version constraint should be ^16.7.0-alpha.0, @types/react should be ^16.7.0.






          share|improve this answer


























          • Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

            – Alexandru Popa
            Nov 21 '18 at 15:15













          • Hooks are 16.7, not 16.6. I updated the answer.

            – estus
            Nov 21 '18 at 15:26
















          0












          0








          0







          import supports a limited set of syntax variations.



          It can be:



          import React, {useState}  from 'react';


          The downside is that entire library is imported, because React is default export and cannot be tree-shaken. Since the presence of React import is needed to use JSX syntax, a more efficient way is:



          import * as React from 'react';
          import {useState} from 'react';


          Hooks were introduced in pre-release React 16.7. react version constraint should be ^16.7.0-alpha.0, @types/react should be ^16.7.0.






          share|improve this answer















          import supports a limited set of syntax variations.



          It can be:



          import React, {useState}  from 'react';


          The downside is that entire library is imported, because React is default export and cannot be tree-shaken. Since the presence of React import is needed to use JSX syntax, a more efficient way is:



          import * as React from 'react';
          import {useState} from 'react';


          Hooks were introduced in pre-release React 16.7. react version constraint should be ^16.7.0-alpha.0, @types/react should be ^16.7.0.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 21 '18 at 15:25

























          answered Nov 21 '18 at 14:55









          estusestus

          72.4k22106224




          72.4k22106224













          • Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

            – Alexandru Popa
            Nov 21 '18 at 15:15













          • Hooks are 16.7, not 16.6. I updated the answer.

            – estus
            Nov 21 '18 at 15:26





















          • Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

            – Alexandru Popa
            Nov 21 '18 at 15:15













          • Hooks are 16.7, not 16.6. I updated the answer.

            – estus
            Nov 21 '18 at 15:26



















          Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

          – Alexandru Popa
          Nov 21 '18 at 15:15







          Sorry still not working it gives me the following 'Module '"C:/web-client-ts/node_modules/@types/react/index"' has no exported member 'useState'.'

          – Alexandru Popa
          Nov 21 '18 at 15:15















          Hooks are 16.7, not 16.6. I updated the answer.

          – estus
          Nov 21 '18 at 15:26







          Hooks are 16.7, not 16.6. I updated the answer.

          – estus
          Nov 21 '18 at 15:26






















          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%2f53414287%2fimport-hooks-into-react-typescript%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

          'app-layout' is not a known element: how to share Component with different Modules

          android studio warns about leanback feature tag usage required on manifest while using Unity exported app?

          WPF add header to Image with URL pettitions [duplicate]