What is the method for extracting the name and id of a tag when the mouse hovers over it?

Question

What is the method for extracting the name and id of a tag when the mouse hovers over it?

Looking for a way to display the name and id of a tag when it is in focus.
For instance,
if focus is on an input with id 1th, display input and 1th using console.log.
if focus is on a textarea with id 2th, show textarea and 2th through console.log.

let ob = window.document.getElementsByTag("");
function getNameAndId(event){
    console.log(tag's name and id);
}
ob.addEventListener("focus",getNameAndId);

 
content:<input id="1th" type="text">
<br/>
content:<textarea id="2th" cols=6 rows=5></textarea>
<br/>
content:<input id="3th" type="text">
<br/>
content:<input id="4th" type="text">

In my example, I am unsure how to define ob.

let ob = window.document.getElementsByTag("");

Is there a way to display the tag's name and id when it is focused?

console.log(tag's name and id);

javascript events focus

Answer 1

Answer №1

If you want to achieve event delegation, simply assign the event listener to a parent element (such as the body) and use capture by passing in true as the third parameter of the addEventListener method. Then, access the specific element using event.target:

function getNameAndId(event) {
    var target = event.target;
    console.log("Tag: " + target.tagName);
    console.log("Id: " + target.id);
}
document.body.addEventListener("focus", getNameAndId, true);

 
content:<input id="1th" type="text">
<br/>
content:<textarea id="2th" cols=6 rows=5></textarea>
<br/>
content:<input id="3th" type="text">
<br/>
content:<input id="4th" type="text">

Please note: By implementing this technique, the focus event will be captured for all focusable elements within the body. You can further refine this by selecting a different parent element or filtering based on the tagName of the element.

Answer 2

If you want to achieve event delegation, simply assign the event listener to a parent element (such as the body) and use capture by passing in true as the third parameter of the addEventListener method. Then, access the specific element using event.target:

function getNameAndId(event) {
    var target = event.target;
    console.log("Tag: " + target.tagName);
    console.log("Id: " + target.id);
}
document.body.addEventListener("focus", getNameAndId, true);

 
content:<input id="1th" type="text">
<br/>
content:<textarea id="2th" cols=6 rows=5></textarea>
<br/>
content:<input id="3th" type="text">
<br/>
content:<input id="4th" type="text">

Please note: By implementing this technique, the focus event will be captured for all focusable elements within the body. You can further refine this by selecting a different parent element or filtering based on the tagName of the element.

Answer 3

Answer №2

Start by identifying the active element's ID.

let activeElementId = document.activeElement.id;

Next, retrieve the tag name using the following code snippet.

let tagName = document.getElementById(activeElementId).tagName;

Finally,

console.log("Tag Name: " + tagName + ", Active Element ID: " + activeElementId);

Answer 4

Start by identifying the active element's ID.

let activeElementId = document.activeElement.id;

Next, retrieve the tag name using the following code snippet.

let tagName = document.getElementById(activeElementId).tagName;

Finally,

console.log("Tag Name: " + tagName + ", Active Element ID: " + activeElementId);

Answer 5

Answer №3

If you're looking to enhance the scalability, consider enclosing this in a more versatile wrapper.

<html>
<head>
    <script>
            window.addEventListener("focusin", (event)=> {
                if (event && event.target) {
                    console.log(`ID = ${event.target.getAttribute("id")}`);
                    console.log(`NAME = ${event.target.tagName}`);
                }
            });
    </script>
</head>
<body>
    <input id="hello" style="border: 1px solid #000; padding: 20px;">
</body>

Answer 6

If you're looking to enhance the scalability, consider enclosing this in a more versatile wrapper.

<html>
<head>
    <script>
            window.addEventListener("focusin", (event)=> {
                if (event && event.target) {
                    console.log(`ID = ${event.target.getAttribute("id")}`);
                    console.log(`NAME = ${event.target.tagName}`);
                }
            });
    </script>
</head>
<body>
    <input id="hello" style="border: 1px solid #000; padding: 20px;">
</body>

What is the method for extracting the name and id of a tag when the mouse hovers over it?

Answer №1

Answer №2

Answer №3

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