Inserting an image tag into a container using JavaScript

Question

Inserting an image tag into a container using JavaScript

I am currently struggling to use JavaScript to insert an image into the placehere div. Could someone please assist me in troubleshooting my code?

<html>
<script type="text/javascript">
var elem = document.createElement("img");
elem.setAttribute("src", "images/sunflower.jpg");
elem.setAttribute("height", "768");
elem.setAttribute("width", "1024");
elem.setAttribute("alt", "Sunflower");
document.getElementById("placehere").appendChild("elem");
</script>
<body>

<div id="placehere">

</div>

</body>
</html>

javascript dom

Answer 1

Answer №1

Implement the following code to insert an element into the document with id "placehere":

Do not use the following code:

document.getElementById("placehere").appendChild("elem");

Instead, set the source using the code snippet below:

elem.src = 'images/hydrangeas.jpg';

Answer 2

Implement the following code to insert an element into the document with id "placehere":

Do not use the following code:

document.getElementById("placehere").appendChild("elem");

Instead, set the source using the code snippet below:

elem.src = 'images/hydrangeas.jpg';

Answer 3

Answer №2

It is important to place your div before your javascript code. This ensures that the javascript executes only after the div exists. Otherwise, you may encounter errors where the div cannot be found or the appendChild method is called on null. Here is an example of how your code should be structured:

window.onload = function() {
  var elem = document.createElement("img");
  elem.setAttribute("src", "http://img.zohostatic.com/discussions/v1/images/defaultPhoto.png");
  elem.setAttribute("height", "768");
  elem.setAttribute("width", "1024");
  elem.setAttribute("alt", "Flower");
  document.getElementById("placehere").appendChild(elem);
}

<div id="placehere"></div>

To demonstrate this concept, you can view this example with the onload event and this example without the onload event. By opening the console, you will notice the difference in behavior based on the placement of the div.

Answer 4

It is important to place your div before your javascript code. This ensures that the javascript executes only after the div exists. Otherwise, you may encounter errors where the div cannot be found or the appendChild method is called on null. Here is an example of how your code should be structured:

window.onload = function() {
  var elem = document.createElement("img");
  elem.setAttribute("src", "http://img.zohostatic.com/discussions/v1/images/defaultPhoto.png");
  elem.setAttribute("height", "768");
  elem.setAttribute("width", "1024");
  elem.setAttribute("alt", "Flower");
  document.getElementById("placehere").appendChild(elem);
}

<div id="placehere"></div>

To demonstrate this concept, you can view this example with the onload event and this example without the onload event. By opening the console, you will notice the difference in behavior based on the placement of the div.

Answer 5

Answer №3

function addImage()
{
    //dynamically insert an image and define its properties
    var newImg = document.createElement("img");
    newImg.src = "image.jpg";
    newImg.id = "myImage";
    var container = document.getElementById("imageContainer");
    container.appendChild(newImg);
}

<span id="imageContainer">&nbsp;</span>

Answer 6

function addImage()
{
    //dynamically insert an image and define its properties
    var newImg = document.createElement("img");
    newImg.src = "image.jpg";
    newImg.id = "myImage";
    var container = document.getElementById("imageContainer");
    container.appendChild(newImg);
}

<span id="imageContainer">&nbsp;</span>

Answer 7

Answer №4

This alternative solution offers a more concise way to achieve the same result:

<div id="picDiv"></div>

Using JavaScript:

document.getElementById('picDiv').innerHTML = '<img width="100" height="100" src="pictures/sunflower.jpg">';

Answer 8

This alternative solution offers a more concise way to achieve the same result:

<div id="picDiv"></div>

Using JavaScript:

document.getElementById('picDiv').innerHTML = '<img width="100" height="100" src="pictures/sunflower.jpg">';

Answer 9

Answer №5

If you're curious about how to achieve this using JQuery:

$("<img height='200' width='200' alt='testImage' src='https://avatars.githubusercontent.com/u/47340995?v=4'> </img>").appendTo("#container");

Reference: https://api.jquery.com/jQuery/#jQuery2

Answer 10

If you're curious about how to achieve this using JQuery:

$("<img height='200' width='200' alt='testImage' src='https://avatars.githubusercontent.com/u/47340995?v=4'> </img>").appendTo("#container");

Reference: https://api.jquery.com/jQuery/#jQuery2

Inserting an image tag into a container using JavaScript

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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