methods - vue2 call a parent function using $emit from component -


i'm trying call parent methods child component, seems not working.. here code:

index.html

<div class="percorso"v-on:removeall="pathlengthtozero()"> </div>

component

vue.component('lista-percorso', { template:` <div class="col-lg-2 col-xs-2">     <div class="removeall pull-right" v-on:click="removeall()"></div> </div>`,      methods:{     removeall : function(){         this.listaselezionati = [];         this.$emit('removeall');     } }

parent method 

    pathlengthtozero : function(){        il_tuo_percorso = [''];     }

seems "pathlengthtozero" not called on emit correct way use it?

you need put v-on:removeall="pathlengthtozero" component <lista-percorso> below,

<lista-percorso v-on:removeall="pathlengthtozero"></lista-percorso>

and this.$emit able fire parent method.

sample demo:

vue.component('lista-percorso', {  template:`  <div class="col-lg-2 col-xs-2">      <div class="removeall pull-right" v-on:click="removeall()">xxxxxxxxxx</div>  </div>`,        methods:{      removeall : function(){          this.listaselezionati = [];          this.$emit('removeall');      }    }  })        var app = new vue({    el: '#app',    methods:{      pathlengthtozero : function(){        alert('hello');         il_tuo_percorso = [''];      }    }  });
<script src="https://unpkg.com/vue"></script>    <div id="app">    <div class="percorso" ></div>      <lista-percorso v-on:removeall="pathlengthtozero"></lista-percorso>  </div>


Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more