Display a default value in HTML select using Vue.js and Minimalect - javascript

I'm using Vue.js with the Mininmalect HTML select plugin to display a list of countries by name and value (value being the 2 digit country code).
I've got it to work when using the plugin to select a country. It's adds the value to the selected state.
What I can't work out is how display a value/country when there is already one in state (i.e. from the database when the page loads).
This is what I have:
<template>
<select name="country" v-model="country">
<option v-for="country in countries" value="{{ country.value }}">{{ country.label }}</option>
</select>
</template>
<script>
export default {
data() {
return {
selected: 'GB',
countries: require('../utilities/countries.js'),
}
},
ready() {
var vm = this;
$('select').minimalect({
onchange: function(value) {
vm.selected = value;
}
});
}
};
</script>
I'm struggling to get the select attribute to appear, i.e. <option value="GB" selected>United Kingdom</option> so there is a default when the page is loaded.

You've got v-model="country", so if you just set the value of country to the database value, the select will automatically be set to that value.
data() {
return {
country: 'GB',
countries: require('../utilities/countries.js'),
}
},
ready() {
var vm = this;
$('select').minimalect({
onchange: function(value) {
vm.country = value;
},
afterinit: function() {
$('select').val(vm.country).change();
}
});
}

Change your v-model with selected. And I think your problem is a performance problem. Add a setTimeout for your function.
<template>
<select name="country" v-model="selected">
<option v-for="country in countries" value="{{ country.value }}">{{ country.label }}</option>
</select>
</template>
<script>
export default {
data() {
return {
selected: 'GB',
countries: require('../utilities/countries.js'),
}
},
ready() {
var vm = this;
setTimeout(function(){
$('select').minimalect({
onchange: function(value) {
vm.selected = value;
}
});
});
}
};
</script>

Related

How to fix v-model select option onchange returns previously selected or became static value instead of current with Vue.js?

I have a problem when I visit the message page and I select a device, the v-model selected value will change. But if I visit the device page and contact page the v-model selected value will not change or become set to the last time value that I selected.
Here is my function in DeviceController to fetch devices:
public function devices()
{
try {
$devices = Device::orderby('id', 'asc')->get();
return response()->json($devices);
} catch (\Throwable $th) {
return response()->json(['message' => $th->getMessage()]);
}
}
Here is the function from method to get devices{} data from DeviceController:
getDevices() {
axios.get(`/api/devices`)
.then(response => {
this.devices = response.data;
});
},
Here is my select option code:
<select class="form-select form-select-lg mb-3" v-model="choosed" #change="onChange()">
<option :value="null">Choose Device to Send SMS</option>
<option v-for="item in devices" :key="item.id" :value="item.id" >{{ item.device_name }}
</option>
</select>
Here is my selected v-model and devices JSON which devices that item.id came from in data:
export default {
data() {
return {
devices: {},
choosed: null,
}
},
}
Here is my onChange function in method:
onChange: function(){
this.choosed = this.item.id;
},
Remove the function onChange - it is plain wrong.

Set first value in dropdown as default value in VueJs

I want to make the first value of time Object as a default value for my dropdown. Whenever user enter the website, the first value has been selected as my default value. However, my current code only display the value but not selected yet on vue data. How can I do that?
time Object:-
{ "1290_1320":"21:30 - 22:00",
"1320_1350":"22:00 - 22:30",
"1350_1380":"22:30 - 23:00"
}
Dropdown HTML:-
<div class="form-group col-md-8">
<select id="pickup" class="form-control" #change.prevent="changeTime($event)">
<option selected="selected" v-for="(time, i) in this.timeslots" :key="i"
:value="time">{{time}}</option>
</select>
</div>
Vue:-
export default {
data() {
return {
selectedTime: null
}
},
methods: {
changeTime(event) {
this.selectedTime = event.target.options[event.target.options.selectedIndex].text;
}
Dropdown javascript:-
// remove "selected" from any options that might already be selected
$('#pickup option[selected="selected"]').each(
function() {
$(this).removeAttr('selected');
}
);
// mark the first option as selected
$("#pickup option:first").attr('selected','selected');
It depends on your particular usecase but generally you can do something like this:
<div class="form-group col-md-8">
<select id="pickup" v-model="selectedTime" class="form-control">
<option v-for="(timeValue, timeID) in timeslots" :key="timeID" :value="timeID">{{ timeValue }}</option>
</select>
</div>
<script>
import axios from 'axios';
export default
{
name: 'MyDropDown',
data()
{
return {
selectedTime: null,
timeSlots: {},
}
},
created()
{
this.fetchData();
},
methods:
{
fetchData()
{
axios.get('/api/getTimeSlots').then(response =>
{
this.timeSlots = response.data;
this.selectedTime = Object.keys(response.data)[0];
});
},
}
}

vue.js loop option value in object

i have the object like this;
fluit:[
{id:'001', name:"Apple"},
{id:'002', name:"Banana"},
{id:'003', name:"Mango"},
{id:'004', name:"orange"},
{id:'005', name:"papaya"},
]
And code in vuejs like this
<select >
<option v-for="(item, index) in fluit" :key="index" :value="item.id" id="select"{{item.name</option>
</select>
and what i get from this tag it's like this
and what i want to ask is how can i get the value as the id of each option. like a when i select Mango and the value is 003.
if you know how to solve this please help me.
thank you.
For Your Solution use this -
<template>
<select name="itemType" v-model="itemType" #change="onChange()" class="form-control">
<option value="001">Apple</option>
<option value="002">Banana</option>
</select>
</template>
<script>
export default {
data() {
return {
itemType: '',
}
},
methods: {
onChange() {
console.log('The new value is: ', this.itemType)
}
}
}
</script>
My advice use vuetify (v-select)component with vue for better performance.
<template>
<v-select
v-model="select"
:items="fluit"
item-text="id"
item-value="name"
label="Select"
#input="doSomething"
return-object/>
</template>
<script>
export default {
data () {
return {
select: { id:'005', name:"papaya" },
items: [
{id:'001', name:"Apple"},
{id:'002', name:"Banana"},
{id:'003', name:"Mango"},
{id:'004', name:"orange"},
{id:'005', name:"papaya"},
],
}
method:{
doSomething(){
console.log(this.select)
}
}
},
}
</script>
I Hope it will help!
add a v-model to your select and that is it:
<select v-model="selectedItem">
<option v-for="(item, index) in fluit" :key="index" :value="item.id" id="select">
{{item.name}}
</option>
</select>
now selectedItem will contain the value of the fruit, working example :
https://codesandbox.io/s/fruit-select-vs709

How can I get text selected when category clicked on combobox ? (Vue.JS 2)

I have a vue component like this :
<script>
export default{
template: '\
<select class="form-control" v-model="selected" v-on:change="search">\
<option v-for="option in options" v-bind:value="option.id" v-bind:disabled="option.disabled">{{ option.name }}</option>\
</select>',
mounted() {
this.fetchList();
},
data() {
return {
selected: '',
options: [{id: '', name: window.trans.category.select}]
};
},
methods: {
search(e){
window.location = window.BaseUrl + '/search?q=&cat=' + e.target.value;
},
fetchList: function() {
this.$http.post(window.BaseUrl+'/category/list?parent_id=all').then(function (response) {
response.data.forEach(function(item){
this.options.push({id:item.id, name:item.name})
}, this);
});
},
}
};
</script>
When category clicked, I want get text of the category
On my code above, I use this : e.target.value to get id selected and it works
But, how can I get text selected when category clicked?
I try this : e.target.text, but id does not work
Is there anyone who can help me?
Given you want both id and name, you can try this:
template: '\
<select class="form-control" v-on:change="search">\
<option v-for="option in options" v-bind:value="option.id" #click="selected=option.name" v-bind:disabled="option.disabled">{{ option.name }}</option>\
</select>',
mounted() {
this.fetchList();
},

vue js how to set option value selected

I'm using vue js for my application in select option input..I need to set default value should be selected in the drop down and while on change i would like to call two functions ..
I'm new to vue js..
My Code :
var listingVue = new Vue({
el: '#mountain',
data:{
formVariables: {
country_id: '',
mountain_id: '',
peak_id: ''
},
countrylist:[],
mountainlist:[],
},
ready: function() {
var datas = this.formVariables;
this.getCountry();
},
methods: {
getCountry: function()
{
this.$http.get(baseurl+'/api/v1/device/getCountry',function(response)
{
this.$set('countrylist',response.result);
//alert(jQuery('#country_id').val());
});
},
getMountain: function(country_id)
{
var datas = this.formVariables;
datas.$set('country_id', jQuery('#country_id').val() );
postparemeters = {country_id:datas.country_id};
this.$http.post(baseurl+'/api/v1/site/getMountain',postparemeters,function(response)
{
if(response.result)
this.$set('mountainlist',response.result);
else
this.$set('mountainlist','');
});
},
});
<select
class="breadcrumb_mountain_property"
id="country_id"
v-model="formVariables.country_id"
v-on="change:getMountain(formVariables.country_id);">
<option
v-repeat = "country: countrylist"
value="#{{country.id}}" >
#{{country.name}}
</option>
</select>
With vue 2, the provided answer won't work that well. I had the same problem and the vue documentation isn't that clear concerning <select>. The only way I found for <select> tags to work properly, was this (when talking of the question):
<select v-model="formVariables.country_id">
<option v-for = "country in countrylist" :value="country.id" >{{country.name}}</option>
</select>
I assume, that the #-sign in #{{...}} was due to blade, it should not be necessary when not using blade.
In VueJS 2 you can bind selected to the default value you want. For example:
<select
class="breadcrumb_mountain_property"
id="country_id"
v-model="formVariables.country_id"
v-on:change="getMountain(formVariables.country_id);">
<option
v-for = "country in countrylist"
:selected="country.id == 1"
:value="country.id" >
{{country.name}}
</option>
</select>
So, during the iteration of the countryList, the country with the id 1 will be selected because country.id == 1 will be true which means selected="true".
UPDATED:
As Mikee suggested, instead of v-on="change:getMountain(formVariables.country_id);" there is a new way to for binding events. There is also a short form #change="getMountain(formVariables.country_id);"
You should use the 'options' attribute in place of trying to v-repeat <option></option>:
VM
data: {
countryList: [
{ text:'United States',value:'US' },
{ text:'Canada',value:'CA' }
]
},
watch: {
'formVariables.country_id': function() {
// do any number of things on 'change'
}
}
HTML
<select
class="breadcrumb_mountain_property"
id="country_id"
v-model="formVariables.country_id"
options="countryList">
</select>
You can use select in this way. Remember to use array in v-for.
<select v-model="album.primary_artist">
<option v-for="i in artistList" :key="i.id" :value="i.name">
{{ i.name }}
</option>
</select>
You can use this way.
<select v-model="userData.categoryId" class="input mb-3">
<option disabled value="null">Kategori</option>
<option
v-for="category in categoryList"
:key="category.id"
:value="category.id"
>
{{ category.name }}
</option>
</select>
export default {
data() {
return {
categoryList: [],
userData: {
title: null,
categoryId: null,
},
};
},
The important thing here is what the categoryId value is, the default option value should be that.
categoryId: null,
<option disabled value="null">Kategori</option>
Here we use categoryId as value in v-model and initialize it with null. Value must be null in default option.
<select v-model="userData.categoryId" class="input mb-3">

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