In Vue.js, how can I get a keypress event to get the latest version of the input?












1














In the following code:



https://codepen.io/anon/pen/WYJopq



I monitor key presses and try to clone the input into another input as follows:



  [![methods: {

    clone: function() {

      this.mirror = this.original;

    }

  }]


But the cloned input is always one keystroke behind:



https://i.stack.imgur.com/y2uCA.gif



How do I update my code so that the cloned input exactly matches the original input?



(Note: I know for this simple example, there's an idiomatic Vue.js way to do things, but I'm specifically interested in doing this via keystroke monitoring)






vue.js







share|improve this question


















  • 1




    Have you tried using keyup instead of keypress?
    – Omari Celestine
    Nov 23 '18 at 21:31










  • is there a reason you are using keypress instead of keyup?
    – Katie.Sun
    Nov 23 '18 at 21:33
















1














In the following code:



https://codepen.io/anon/pen/WYJopq



I monitor key presses and try to clone the input into another input as follows:



  [![methods: {

    clone: function() {

      this.mirror = this.original;

    }

  }]


But the cloned input is always one keystroke behind:



https://i.stack.imgur.com/y2uCA.gif



How do I update my code so that the cloned input exactly matches the original input?



(Note: I know for this simple example, there's an idiomatic Vue.js way to do things, but I'm specifically interested in doing this via keystroke monitoring)






vue.js







share|improve this question


















  • 1




    Have you tried using keyup instead of keypress?
    – Omari Celestine
    Nov 23 '18 at 21:31










  • is there a reason you are using keypress instead of keyup?
    – Katie.Sun
    Nov 23 '18 at 21:33














1












1








1







In the following code:



https://codepen.io/anon/pen/WYJopq



I monitor key presses and try to clone the input into another input as follows:



  [![methods: {

    clone: function() {

      this.mirror = this.original;

    }

  }]


But the cloned input is always one keystroke behind:



https://i.stack.imgur.com/y2uCA.gif



How do I update my code so that the cloned input exactly matches the original input?



(Note: I know for this simple example, there's an idiomatic Vue.js way to do things, but I'm specifically interested in doing this via keystroke monitoring)






vue.js







share|improve this question













In the following code:



https://codepen.io/anon/pen/WYJopq



I monitor key presses and try to clone the input into another input as follows:



  [![methods: {

    clone: function() {

      this.mirror = this.original;

    }

  }]


But the cloned input is always one keystroke behind:



https://i.stack.imgur.com/y2uCA.gif



How do I update my code so that the cloned input exactly matches the original input?



(Note: I know for this simple example, there's an idiomatic Vue.js way to do things, but I'm specifically interested in doing this via keystroke monitoring)






vue.js




vue.js






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 23 '18 at 21:24









MaryMary

17219




17219








  • 1




    Have you tried using keyup instead of keypress?
    – Omari Celestine
    Nov 23 '18 at 21:31










  • is there a reason you are using keypress instead of keyup?
    – Katie.Sun
    Nov 23 '18 at 21:33














  • 1




    Have you tried using keyup instead of keypress?
    – Omari Celestine
    Nov 23 '18 at 21:31










  • is there a reason you are using keypress instead of keyup?
    – Katie.Sun
    Nov 23 '18 at 21:33








1




1




Have you tried using keyup instead of keypress?
– Omari Celestine
Nov 23 '18 at 21:31




Have you tried using keyup instead of keypress?
– Omari Celestine
Nov 23 '18 at 21:31












is there a reason you are using keypress instead of keyup?
– Katie.Sun
Nov 23 '18 at 21:33




is there a reason you are using keypress instead of keyup?
– Katie.Sun
Nov 23 '18 at 21:33












1 Answer
1






active

oldest

votes


















2














With a keyboard, we have three events fired in the following order:





  1. keydown - fired before character inserted


  2. keypress - fired when a character is getting inserted


  3. keyup - fired when character is already inserted


In this scenario, if you need input with updated characters, you should use keyup event which is after the character is inserted into the input.



Having said this, you should probably use @input event as relying on the keyboard means you are not thinking about other ways via which text can be inserted into the input box. For example, copy-paste or using an on-screen keyboard:



<input type="text" v-model="original" @input="clone()" />





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%2f53453085%2fin-vue-js-how-can-i-get-a-keypress-event-to-get-the-latest-version-of-the-input%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









    2














    With a keyboard, we have three events fired in the following order:





    1. keydown - fired before character inserted


    2. keypress - fired when a character is getting inserted


    3. keyup - fired when character is already inserted


    In this scenario, if you need input with updated characters, you should use keyup event which is after the character is inserted into the input.



    Having said this, you should probably use @input event as relying on the keyboard means you are not thinking about other ways via which text can be inserted into the input box. For example, copy-paste or using an on-screen keyboard:



    <input type="text" v-model="original" @input="clone()" />





    share|improve this answer


























      2














      With a keyboard, we have three events fired in the following order:





      1. keydown - fired before character inserted


      2. keypress - fired when a character is getting inserted


      3. keyup - fired when character is already inserted


      In this scenario, if you need input with updated characters, you should use keyup event which is after the character is inserted into the input.



      Having said this, you should probably use @input event as relying on the keyboard means you are not thinking about other ways via which text can be inserted into the input box. For example, copy-paste or using an on-screen keyboard:



      <input type="text" v-model="original" @input="clone()" />





      share|improve this answer
























        2












        2








        2






        With a keyboard, we have three events fired in the following order:





        1. keydown - fired before character inserted


        2. keypress - fired when a character is getting inserted


        3. keyup - fired when character is already inserted


        In this scenario, if you need input with updated characters, you should use keyup event which is after the character is inserted into the input.



        Having said this, you should probably use @input event as relying on the keyboard means you are not thinking about other ways via which text can be inserted into the input box. For example, copy-paste or using an on-screen keyboard:



        <input type="text" v-model="original" @input="clone()" />





        share|improve this answer












        With a keyboard, we have three events fired in the following order:





        1. keydown - fired before character inserted


        2. keypress - fired when a character is getting inserted


        3. keyup - fired when character is already inserted


        In this scenario, if you need input with updated characters, you should use keyup event which is after the character is inserted into the input.



        Having said this, you should probably use @input event as relying on the keyboard means you are not thinking about other ways via which text can be inserted into the input box. For example, copy-paste or using an on-screen keyboard:



        <input type="text" v-model="original" @input="clone()" />






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 24 '18 at 6:11









        Harshal PatilHarshal Patil

        2,39711140




        2,39711140






























            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.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • 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%2f53453085%2fin-vue-js-how-can-i-get-a-keypress-event-to-get-the-latest-version-of-the-input%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

            Contact image not getting when fetch all contact list from iPhone by CNContact

            Image
            up vote 0 down vote favorite I know this question already asked but not getting solution. From this code I will get all the information from the contact but image not found when open vcf files on mac os, also not getting when share this file. I use this stackoverflow link here but It's not help full. var contacts = [CNContact]() let keys = [CNContactVCardSerialization.descriptorForRequiredKeys() ] as [Any] let request = CNContactFetchRequest(keysToFetch: keys as! [CNKeyDescriptor]) do { try self.contactStore.enumerateContacts(with: request) { (contact, stop) in // Array containing all unified contacts from everywhere contacts.append(contact) } } catch { print("unable to fetch contacts") } do { let data = try
            Read more

            count number of partitions of a set with n elements into k subsets

            Image
            up vote 6 down vote favorite 1 This program is for count number of partitions of a set with n elements into k subsets I am confusing here return k*countP(n-1, k) + countP(n-1, k-1); can some one explain what is happening here? why we are multiplying with k? NOTE->I know this is not the best way to calculate number of partitions that would be DP // A C++ program to count number of partitions // of a set with n elements into k subsets #include<iostream> using namespace std; // Returns count of different partitions of n // elements in k subsets int countP(int n, int k) { // Base cases if (n == 0 || k == 0 || k > n) return 0; if (k == 1 || k == n) return 1; // S(n+1, k) = k*S(n, k) + S(n, k-1) return k*countP(n-1, k) + countP(n-1, k-1); } // Driver program int ma
            Read more

            A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks

            Image
            0 I found a lot of questions abount appendices and ToC. Many users want appendices to be grouped in an Appendix part, however some problems arise with ToC, hyperref, PDF viewer bookmarks, and so on. There are different solutions which require extra packages, command patching and other extra code, however none of them satisfies me. I almost found an easy way to accomplish a good result, where appendices are added to bookmarks in the right way and hyperref links point to the right page. However, the number of the "Appendix" part page is wrong (it's the number of appendix A). Is there any EASY way to fix that? This is a MWE: documentclass{book} usepackage[nottoc,notlot,notlof]{tocbibind} usepackage{hyperref} begin{document} frontmatter tableofcontents mainmatter part{First} chapter{
            Read more