Vue JS insert and remove html elements dynamicaly - vue.js

I want some thing like this,
If I hit "Add Another" button another set of input boxes should render below this set and this set's "Add Another" button should change to the "Remove This School" and the maximum number of input rows should limited to the 5.
I hope you understand my requirement.What I want is that the user can enter 5 schools or less than 5 schools.If he accidentally add some wrong information he should have a remove button to remove that record.How do I achieve this using Vue JS.
This is my code.
<template>
<div id="app">
<p>Please enter the schools you attained (Maximum five)</p>
School Name : <input type="text" name="" value="">
Location : <input type="text" name="" value="">
<button type="button" name="button" #click="addAnotherInputBox">Add Another</button>
</div>
</template>
<script>
export default {
name: 'app',
data () {
return {
counter:0
}
},
methods:{
addAnotherInputBox(){
}
}
}
</script>

Here you go, although you should have filled the logic of your add button, but you can do that by your own
Here is a working fiddle: https://jsfiddle.net/Sletheren/Lo7t0myL/
<template>
<div id="app">
<p>Please enter the schools you attained (Maximum five)</p>
School Name : <input v-model="name" type="text" name="" value="">
Location : <input v-model="location" type="text" name="" value="">
<button type="button" name="button" #click="addAnotherInputBox">Add Another</button>
<ul class="schools">
<li v-for="school in schools">
{{school.name}} <button #click="removeSchool(school)">remove</button>
</li>
</ul>
</div>
</template>
<script>
export default {
name: 'app',
data () {
return {
counter:0,
name: '',
location:'',
schools: []
}
},
methods:{
addAnotherInputBox(){
// your logic here...
if(this.counter>4){
alert('you should delete one first! only 5 allowed')
}else{
const school = {
name: this.name, //name here
location: this.location //location here
}
this.counter++;
this.schools.push(school)
this.name='';
this.location=''
}
},
removeSchool(school) {
this.schools.splice(this.schools.indexOf(school),1);
this.counter--;
}
}
}
</script>

Related

How can I change input value in Vue when value is set and update it when it is object of arrays?

I generate so many input boxes on loop of article array.
article is array of objects. Input boxes values are set with "value" key in each object.
<div
v-for="(option, i) in this.article"
:key="i"
class="form-row"
>
<div class="col">
<input
v-model="option.value"
:label="'label '+i"
:name="'inputValue'+i"
type="text"
required
/>
</div>
</div>
<button #click="submit"></button>
<script>
export default {
name: 'Article',
data(){
return(
article:[
{id: 'art1', value: 'artValue1'},
{id: 'art2', value: 'artValue2'},
{id: 'art3', value: 'artValue3'}
// There are about 50 objects
]
)
},
methods:{
submit(){
// How get values of inputs?
}
}
}
</script>
How can I make the value of input change and update the object in vue?
I created a sample Single File Component based on your code. Look at my modifications. The 'magic' of Vue reactivity is that the 'article' data is updated in real time as you change the input values.
<template>
<div class="input-bound-object-array">
<div class="row">
<div class="col-md-6">
<form #submit.prevent="submitForm">
<div class="form-group" v-for="(option, i) in article" :key="i">
<label>{{ option.id }}</label>
<input type="text" class="form-control" v-model="option.value"
required />
</div>
<button type="submit" class="btn btn-secondary">Submit</button>
</form>
</div>
</div>
</div>
</template>
<script>
export default {
data() {
return {
article: [
{ id: 'art1', value: 'artValue1' },
{ id: 'art2', value: 'artValue2' },
{ id: 'art3', value: 'artValue3' }
// There are about 50 objects
]
}
},
methods: {
submitForm() {
// 'this.article' is updated as the input values are changed, so at this point
// you have the data changes, so you can process it as needed, i.e. POST to REST endpoint
console.log(this.article);
}
}
}
</script>
You forgot to return the object from data function and you can pass option to submit handler and print the input values.
// How get values of inputs? -> Do you mean all of the inputs or input where ever the button clicked or anything else. Below code is to handle individual input and submit handlers
<template>
<div
v-for="(option, i) in article"
:key="i"
class="form-row"
>
<div class="col">
<input
v-model="option.value"
:label="'label ' + i"
:name="'inputValue' + i"
type="text"
required
/>
</div>
<!-- <button #click="submit(option)">Submit</button> to handle individual inputs -->
</div>
<!-- <button #click="submitAll()">Submit All</button> to handle all inputs -->
</template>
<script>
export default {
name: 'Article',
data() {
return { // you missed this
article:[
{id: 'art1', value: 'artValue1'},
{id: 'art2', value: 'artValue2'},
{id: 'art3', value: 'artValue3'}
]
}
},
methods: {
submit(option) { // current option
console.log(option.id, option.value)
},
submitAll() {
console.log(this.article) // which will have update input values as
you're using `v-model`, check `values`
}
}
}
</script>
Demo Link here

Vue click two input one button

I want to pick a new value when the button is clicked, but I can't
<div class="col-lg-12 col-sm-6 col-4" style="margin-top:5px;">
<p style="margin-bottom:0rem;" > Цена</p>
<label>
<input id="PriceRangeMin" type="number" :value='text' >
-
<input id="PriceRangeMax" placeholder="до" type="number" :value='text1'>
</label>
<button id="PriceRangeMin" type="submit" style="margin-left:30px;" #click='textcon()'>Применить</button>
</div>
My script
<script>
export default {
name: 'Applesmartphone',
data () {
return {
text:[],
text1:[]
}
},
methods: {
textcon(){
console.log(text)
console.log(text1)
}
}
}
Hi, I want to pick a new value when the button is clicked, but I can't.
Bind input to properties using v-model like :
input id="PriceRangeMin" type="number" v-model='text' >
then use this to access that properties inside the method :
textcon(){
console.log(this.text)
console.log(this.text1)
}

Vue.js adding a toggle and method to a button

I have a button that should toggle and also call a method. How do I achieve this? Seems like it can be only one or the other.
new Vue({
el: "#app",
data: {
iExist:false,
iDoNotExist: true,
},
methods: {
iSignedUpforThis: function(){
console.log("step X");
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<p v-show="iExist"> i EXISTS </p>
<p v-show="iDoNotExist">
<strong> You are not found: </strong>
<form >
First name:<br>
<input type="text" name="firstname" value="Mickey">
<br>
Last name:<br>
<input type="text" name="lastname" value="Mouse">
<br><br>
</form>
<BUTTON v-on:click="iExists = iDoNotExist">
TOGGLE MY EXISTENCE
</BUTTON>
</div>
Move
iExists = iDoNotExist to a method:
methods: {
iSignedUpforThis: function(){
this.iExist = this.iDoNotExist
console.log("step X");
}
}
<button v-on:click="iSignedUpForThis">
TOGGLE MY EXISTENCE
</button>
First off to accomplish your desired result you need only one Boolean variable. Then in your method just switch between true and false. Also you have an invalid markup - there is closing tap p but no closing. That's why your example does not work.
Notice: it's bad idea to nest form tag inside p tag, so use div instead. It's considered a good practice to associate your input with it's label using label tag. Also there is shortcut for v-on:click - #click. data should be an function that returns an object, this will prevent . multiple instance to share the same object.
If you follow above recommendations you will make your code much clear and bug-less.
new Vue({
el: '#app',
data: {
isExist: false,
},
methods: {
method() {
this.isExist = !this.isExist
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<div v-show="isExist">I exist</div>
<div v-show="!isExist">
<strong>You are not found:</strong>
<form>
<label>First name:<br>
<input type="text" name="firstname" value="Mickey">
</label>
<br>
<label>Last name:<br>
<input type="text" name="lastname" value="Mouse">
</label>
</form>
</div>
<button #click="method">Toggle</button>
</div>
It might be late but I am sure it will help others. Create a component ToggleButton.js and paste the below codes.
<template>
<label for="toggle_button">
<span v-if="isActive" class="toggle__label">On</span>
<span v-if="! isActive" class="toggle__label">Off</span>
<input type="checkbox" id="toggle_button" v-model="checkedValue">
<span class="toggle__switch"></span>
</label>
</template>
<script>
export default {
data() {
return {
currentState: false
}
},
computed: {
isActive() {
return this.currentState;
},
checkedValue: {
get() {
return this.defaultState
},
set(newValue) {
this.currentState = newValue;
}
}
}
}
</script>
Take a look at the article to learn more https://webomnizz.com/create-toggle-switch-button-with-vue-js/

Refresh v-model

I'm developing question paper application.
Once I type a question and hit the "+" button, the question goes to the question paper array and counter increased by one.
The problem is after I hit the "+" button, then also the question which I have entered previously is still in the fields of the UI. Because of I use v-model to bind the data fields.
What I want is a method to clear those previous question data in UI.
This is something similar to reset button function.
<template>
<div>
<div class="container" v-if="counter<=5">
<h2>Question {{counter}}</h2><hr>
<textarea rows="7" cols="75" v-model="question"></textarea><br><br>
1. Answer <input type="text" v-model="answer1"> <input type="radio" name="q1answer" value="1" v-model="correctAnswer"><br><br>
2. Answer <input type="text" v-model="answer2"> <input type="radio" name="q1answer" value="2" v-model="correctAnswer"><br><br>
3. Answer <input type="text" v-model="answer3"> <input type="radio" name="q1answer" value="3" v-model="correctAnswer"><br><br>
4. Answer <input type="text" v-model="answer4"> <input type="radio" name="q1answer" value="4" v-model="correctAnswer"><br>
<hr>
Knowledge Area <select v-model="knowledgeArea">
<option value="Maths">Mathematics</option>
<option value="Language">Language Skills</option>
<option value="gk">General Knowledge</option>
<option value="other">Other</option>
</select><br><br>
<button type="button" class="btn" #click="pushToArray" >
<span class="glyphicon glyphicon-plus"></span></button>
</div>
<div v-if="counter>5">
<button type="button" class="btn btn-primary" #click="onSubmit">Save Question Paper</button>
</div>
</div>
</template>
<script>
import axios from 'axios';
var questionPaper = [];
export default {
data () {
return {
question:'',
answer1:'',
answer2:'',
answer3:'',
answer4:'',
correctAnswer:'',
knowledgeArea:'',
counter:1,
show:true
}
},
methods: {
onSubmit () {
},
pushToArray(){
const formData = {
question: this.question,
correctAnswer: this.correctAnswer,
answer1: this.answer1,
answer2: this.answer2,
answer3: this.answer3,
answer4: this.answer4,
knowledgeArea:this.knowledgeArea
}
this.counter++;
questionPaper.push(formData);
}
}
}
</script>
Create a template data variable to use as a reset. For example
const templateData = {
question:'',
answer1:'',
answer2:'',
answer3:'',
answer4:'',
correctAnswer:'',
knowledgeArea:''
}
export default { // ...
use that to set your initial data
data() {
return {
counter: 1,
show: true,
...templateData
}
}
Now you can easily reset your data in the pushToArray method, eg
questionPaper.push(formData);
Object.assign(this, templateData);

vue js get multiple values from inputs

So I have 2 blocks of HTML, each containing 2 input fields and when submitting the form, I want to get all values from the inputs, and then create an object from the values...
As of know I've done it with plain vanilla JS and it works as it should, however if feels like to touching the DOM a bit to much, and also are very much depending on a specific DOM struckture, and therefore I was thinking there must be a better way, the VUE way so to speak, however im a bit stuck on how to do this the VUE way, which is why posting the question here in hope of getting some useful tips :)
HTML:
<form novalidate autocomplete="off">
<div class="input-block-container">
<div class="input-block">
<input type="text" placeholder="Insert name" name="name[]" />
<input-effects></input-effects>
</div>
<div class="input-block">
<input type="email" placeholder="Insert email address" name="email[]" />
<input-effects></input-effects>
</div>
</div>
<div class="input-block-container">
<div class="input-block">
<input type="text" placeholder="Insert name" name="name[]" />
<input-effects></input-effects>
</div>
<div class="input-block">
<input type="email" placeholder="Insert email address" name="email[]" />
<input-effects></input-effects>
</div>
</div>
<button class="button button--primary" #click.prevent="sendInvites"><span>Send</span></button>
</form>
JS:
methods: {
createDataObject() {
let emailValues = document.querySelectorAll('input[type="email"]');
emailValues.forEach((email) => {
let name = email.parentNode.parentNode.querySelector('input[type="text"]').value;
if(email.value !== "" && name !== "") {
this.dataObj.push({
email: email.value,
name
});
}
});
return JSON.stringify(this.dataObj);
},
sendInvites() {
const objectToSend = this.createDataObject();
console.log(objectToSend);
//TODO: Methods to send data to server
}
}
You can provide data properties for each of your inputs if you have static content.
data: function() {
return {
name1: '',
email1: '',
name2: '',
email2: ''
}
}
Then use them in your template:
<input type="text" placeholder="Insert name" v-model="name1" />
Access in method by this.name1
Try this
<div id="app">
<h1> Finds </h1>
<div v-for="find in finds">
<input name="name[]" v-model="find.name">
<input name="email[]" v-model="find.email">
</div>
<button #click="addFind">
New Find
</button>
<pre>{{ $data | json }}</pre>
</div>
Vue Component
new Vue({
el: '#app',
data: {
finds: []
},
methods: {
addFind: function () {
this.finds.push({ name: '', email: '' });
}
enter code here
}
});