A beginner's guide to retrieving the innerHTML of an input using Java Script

Question

A beginner's guide to retrieving the innerHTML of an input using Java Script

I'm currently working on a task list project. I’ve been struggling with how to populate the input text onto my card. Ideally, whatever I type into the input field should automatically appear on the card.

I attempted to access the innerHTML of an input element as I entered text. However, I couldn’t figure out how to capture the typed input text. My plan was to dynamically create a new element containing the text and then append it to the card.

let btn = document.querySelector('.add');
let textspace = document.querySelector('.todotext');

const input = document.querySelector('input');

// event listener for button click

btn.addEventListener('click', function() {
  var txt = document.getElementsByClassName('input').innerHTML;
});

<div class="card">
  <div class="todoheader">TODO List</div>
  <div class="todotext"></div>
  <ul class="list"></ul>
  <div class="addtodo">
    <button class="add" type="button"> + </button>
    <input type="text" class="input" placeholder="add todo" />
  </div>
</div>

javascript

Answer 1

Answer №1

Utilize the value property to retrieve the value of the input, rather than using innerHTML. It is important to note that you already have a reference to the input Element stored in the input variable, eliminating the necessity to use getElementsByClassName() for retrieval - particularly since the syntax used there is incorrect.

After obtaining the text, employ createElement() to append a new p element to the .todotext container:

const btn = document.querySelector('.add');
const textspace = document.querySelector('.todotext');
const input = document.querySelector('input');

btn.addEventListener('click', function() {
  const txt = input.value;  
  if (!txt)
    return;
  
  const p = document.createElement('p');
  p.textContent = txt;
  textspace.appendChild(p);
  input.value = '';
});

<div class="card">
  <div class="todoheader">TODO List</div>
  <div class="todotext"></div>
  <ul class="list"></ul>
  <div class="addtodo">
    <button class="add" type="button"> + </button>
    <input type="text" class="input" placeholder="add todo" />
  </div>
</div>

Answer 2

Utilize the value property to retrieve the value of the input, rather than using innerHTML. It is important to note that you already have a reference to the input Element stored in the input variable, eliminating the necessity to use getElementsByClassName() for retrieval - particularly since the syntax used there is incorrect.

After obtaining the text, employ createElement() to append a new p element to the .todotext container:

const btn = document.querySelector('.add');
const textspace = document.querySelector('.todotext');
const input = document.querySelector('input');

btn.addEventListener('click', function() {
  const txt = input.value;  
  if (!txt)
    return;
  
  const p = document.createElement('p');
  p.textContent = txt;
  textspace.appendChild(p);
  input.value = '';
});

<div class="card">
  <div class="todoheader">TODO List</div>
  <div class="todotext"></div>
  <ul class="list"></ul>
  <div class="addtodo">
    <button class="add" type="button"> + </button>
    <input type="text" class="input" placeholder="add todo" />
  </div>
</div>

Answer 3

Answer №2

Thank you to those who have already addressed your query. I'd like to mention that there appears to be a typo in your code (buton instead of button). Once corrected, the button element will display correctly.

Answer 4

Thank you to those who have already addressed your query. I'd like to mention that there appears to be a typo in your code (buton instead of button). Once corrected, the button element will display correctly.

Answer 5

Answer №3

Initially, when using getElementsByClassName, it will retrieve an HTMLCollection which behaves like an array. In this case, it's more suitable to utilize querySelector. Additionally, properties such as innerHTML, textContent, and innerText would all have empty strings for the input element since it is a self-closing tag without inner content. To access its value, you should use the value property instead.

let btn = document.querySelector('.add');
let textspace = document.querySelector('.todotext');
const input = document.querySelector('input');

// event listener for button click

btn.addEventListener('click', function() {
  var txt = input.value;
  console.log(txt)
});

<div class="card">
  <div class="todoheader">TODO List</div>
  <div class="todotext"></div>
  <ul class="list"></ul>
  <div class="addtodo">
    <buton class="add" type="button"> + </buton>
    <input type="text" class="input" placeholder="add todo" />
  </div>
</div>

Answer 6

Initially, when using getElementsByClassName, it will retrieve an HTMLCollection which behaves like an array. In this case, it's more suitable to utilize querySelector. Additionally, properties such as innerHTML, textContent, and innerText would all have empty strings for the input element since it is a self-closing tag without inner content. To access its value, you should use the value property instead.

let btn = document.querySelector('.add');
let textspace = document.querySelector('.todotext');
const input = document.querySelector('input');

// event listener for button click

btn.addEventListener('click', function() {
  var txt = input.value;
  console.log(txt)
});

<div class="card">
  <div class="todoheader">TODO List</div>
  <div class="todotext"></div>
  <ul class="list"></ul>
  <div class="addtodo">
    <buton class="add" type="button"> + </buton>
    <input type="text" class="input" placeholder="add todo" />
  </div>
</div>

Answer 7

Answer №4

btn.onclick = function() {
  var txt = document.querySelector('.input').value;
};

You utilized the method getElementByClassName, which returns an HTMLCollection. To iterate over each element, it is necessary to convert it into an array and loop through them accordingly.

Answer 8

btn.onclick = function() {
  var txt = document.querySelector('.input').value;
};

You utilized the method getElementByClassName, which returns an HTMLCollection. To iterate over each element, it is necessary to convert it into an array and loop through them accordingly.

Answer 9

Answer №5

var userInput = document.getElementById('uniqueId').value;

Remember to retrieve the value of an input element, not its innerHTML.

Assigning a unique id to your input fields and selecting them by id is more efficient!

Answer 10

var userInput = document.getElementById('uniqueId').value;

Remember to retrieve the value of an input element, not its innerHTML.

Assigning a unique id to your input fields and selecting them by id is more efficient!

A beginner's guide to retrieving the innerHTML of an input using Java Script

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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