I'm fairly new to JS and i'm having trouble changing the background of a HTML element by using input from a HTML form and event listeners. This is what i've tried so far:

HTML:

<div class="item" id="taskThreeContainer">
<h2>Task 3</h2>
<p>When writing a valid CSS background color in the input below, the background of this item should change to that color.</p>
<input type="text" id="task3Input">
<script src="script.js" async defer></script>

JS:

//Task 3
const inputColor = document.getElementById("task3Input").value;
const taskThreeContainer = document.getElementById("taskThreeContainer");

function convertColor() {
    taskThreeContainer.style.backgroundColor = inputColor;
};

document.getElementById("task3Input").addEventListener("input", convertColor);

Any help would be much appreciated

Solution (JS):

//Task 3
const taskThreeContainer = document.getElementById("taskThreeContainer");

function convertColor() {
    const inputColor = document.getElementById("task3Input").value.toString();
    taskThreeContainer.style.backgroundColor = inputColor;
};

document.getElementById("task3Input").addEventListener("input", convertColor); 

CodePudding user response：

Well, you need to read the value, being actual / valid at the time You want to apply it to style:

<script >
  const inputColor = () => document.getElementById("task3Input").value.toString();
const taskThreeContainer  = () => document.getElementById("taskThreeContainer");

function convertColor() {
 
  console.log(inputColor())
  taskThreeContainer().style.backgroundColor = `${inputColor()}`;
};

document.getElementById("task3Input").addEventListener("blur", convertColor);

</script>

https://plnkr.co/edit/0U8s8a4NUciwTgGt?open=lib/script.js

CodePudding user response：

function getColor() {
  let color = document.forms["colorForm"]["color"].value;
  documen.getElementById("changeable_element").style.color = color;
}

<div id="changable_element">Something...</div>
<form name="colorForm" onsumit="getColor()">
<input type="text" name="color"/>
<input type="submit" name="Submit"/>
</form>

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

You will need to make something like this. It's also recommened to check the input if its a valid color.