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How to bind to array objects in vue?


By : user2174971
Date : October 16 2020, 08:10 PM
this will help Fisrt of all - you are missing v-model which is necessary for two way binding.
I suggest you try and understand the concept of v-model first:
code :
<tr v-for="(row, powerIndex) in powers">
    <td :class="powerlabelclass(row)">{{ row.name }}</td>
    <td class="power-item" v-for="turn in turns">
        <div v-if="row.expression">
            <input :class="poweritemclass(row)" type="number" :tabindex="tabindex(powerIndex, turn)" v-model="calculatepower(powerIndex, turn)" />       
        </div>
        <div v-else>
            <input :class="poweritemclass(row)" type="number" :tabindex="tabindex(powerIndex, turn)" v-model="row.turns[turn]" />        
        </div>
    </td>
</tr>


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How to bind objects to firebase inside an array?


By : JVanderz
Date : March 29 2020, 07:55 AM
I wish this help you AngularFire accomplishes three-way binding, which is what you're looking for.
Take a look at the quick-start guide.
code :
var app = angular.module("sampleApp", ["firebase"]);
app.controller("SampleCtrl", function($scope, $firebaseObject) {
  var ref = new Firebase("https://<your-firebase>.firebaseio.com/data");
  // synchronize the object with a three-way data binding
  var syncObject = $firebaseObject(ref);
  syncObject.$bindTo($scope, "data");
});
var app = angular.module("sampleApp", ["firebase"]);
app.controller("SampleCtrl", function($scope, $firebaseArray) {
  var ref = new Firebase("https://<your-firebase>.firebaseio.com/messages");
  // create a synchronized array for use in our HTML code
  $scope.messages = $firebaseArray(ref);
});

How to bind an array of objects in Polymer 1.0?


By : Ashu Pandit
Date : March 29 2020, 07:55 AM
With these it helps After sometime, I found the response of my question, this problem was resolved the most easy way you can imagine, yes, creating a new custom element. So here is my element just in case someone needs something like this.
code :
<script>
    Polymer({
        is: 'my-toolbar-icons',
        properties: {
            contextualButtons: {
                type: Array,
                value: function () {
                    return [];
                }
            }
        },
        ready: function(){
            //set data just to show an icon
            this.contextualButtons = [{ icon: 'social:person-add', action: 'new' }, { icon: 'delete', action: 'delete' }, { icon: 'cloud-upload', action: 'update' }, { icon: 'image:camera-alt', action: 'takephoto' }, { icon: 'search', action: 'search' }];
        },
        setData: function (newContextualButtons) {
            //set data to the array (usage)
            //var item = document.querySelector("#id-of-this-element")
            //item.setData(someArrayOfIcons)
            this.contextualButtons = newContextualButtons;
        },
        onContextualButtonTap: function (event) {
            var item = this.$.buttonsRepeat.itemForElement(event.target);
            this.fire('customize-listener', item.action);
        }
    });
</script>

How to bind an array of json objects to an array of javascript class in ES6


By : user2682057
Date : March 29 2020, 07:55 AM
around this issue I don't know exactly what you mean by "in specific classes", but you could create two additional classes like this:
code :
class UserAddress {
  constructor(addressId, addressName, areaId) {
    this._addressId = addressId;
    this._addressName = addressName;
    this._areaId = areaId;
  }

  // place your getters and setters here
}

class AvailableArea {
  constructor(areaId, areaName, cost) {
    this._areaId = areaId;
    this._areaName = areaName;
    this._cost = cost;
  }

  // place your getters and setters here
}
constructor(availableAreas, userAddresses) {
  let a = [];
  let b = [];

  for (let i = 0; i < availableAreas.length; i++) {
    a.push(new AvailableArea(availableAreas[i].AreaId, availableAreas[i].AreaName, availableAreas[i].Cost));
  }
  for (let i = 0; i < userAddresses.length; i++) {
    b.push(new UserAddress(userAddresses[i].AddressId, userAddresses[i].AddressName, userAddresses[i].AreaId));
  }

  this._availableAreas = a;
  this._userAddresses = b;
}

How to bind Vue js watchers to an array of objects


By : Andy Perkins
Date : March 29 2020, 07:55 AM
I wish this helpful for you you can create an array and return from it a list of functions something like this:
code :
data(){ return {
  watcherArray: [];
}
}
methods: {
   pushToWatchersArray() {
      this.watcherArray.push(someValue);
    }
    returnNewWatchers(){
       return { this.watchersArray.map(watcher => return `${watcher}(){ 
       this.updatewatcher()}
    }
watch: {
    [...this.returnNewWatchers()]
 } 

Use v-bind on array of objects in Vuex


By : Johnny Bre
Date : March 29 2020, 07:55 AM
will help you Vuex can be a bit of a pain when your data isn't flat. See https://forum.vuejs.org/t/vuex-best-practices-for-complex-objects/10143 for more on that.
One way you could approach this is to ditch v-model and use :value and @input directly. I've simulated a store in my example but hopefully it's clear what's going on. You can easily grab the index of the customer if you'd find that easier than passing around the object itself.
code :
const storeCustomers = Vue.observable([
  {firstName: "A", lastName: "", age: ""},
  {firstName: "B", lastName: "", age: ""},
  {firstName: "C", lastName: "", age: ""}
])

function storeGetCustomers () {
  return storeCustomers
}

function storeUpdateCustomerFirstName (customer, value) {
  customer.firstName = value
}

new Vue({
  el: '#app',
  
  computed: {
    customers () {
      return storeGetCustomers()
    }
  },
  
  methods: {
    onFirstNameInput (customer, value) {
      storeUpdateCustomerFirstName(customer, value)
    }
  }
})
<script src="https://unpkg.com/vue@2.6.10/dist/vue.js"></script>
<div id="app">
  <div v-for="customer in customers">
    <input :value="customer.firstName" @input="onFirstNameInput(customer, $event.target.value)">
  </div>
  <p>
    {{ customers }}
  </p>
</div>
const storeCustomers = Vue.observable([
  {firstName: "A", lastName: "", age: ""},
  {firstName: "B", lastName: "", age: ""},
  {firstName: "C", lastName: "", age: ""}
])

function storeGetCustomers () {
  return storeCustomers
}

function storeUpdateCustomerFirstName (customer, value) {
  customer.firstName = value
}

const child = {
  props: ['customer'],
  
  template: `
    <div>
      <input v-model="firstName">
    </div>
  `,
  
  computed: {
    firstName: {
      get () {
        return this.customer.firstName
      },
      
      set (value) {
        storeUpdateCustomerFirstName(this.customer, value)
      }
    }
  }
}

new Vue({
  el: '#app',
  
  components: {
    child
  },
  
  computed: {
    customers () {
      return storeGetCustomers()
    }
  }
})
<script src="https://unpkg.com/vue@2.6.10/dist/vue.js"></script>
<div id="app">
  <child v-for="customer in customers" :customer="customer"></child>
  <p>
    {{ customers }}
  </p>
</div>
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