JavaScript: Collect the value of href, hreflang, rel, target, and type attributes of a link

Last update on May 30 2022 10:01:51 (UTC/GMT +8 hours)

JavaScript DOM: Exercise-4 with Solution

Write a JavaScript function to get the value of the href, hreflang, rel, target, and type attributes of the specified link.

Sample HTML file:


<!DOCTYPE html>
<html><head>
<meta charset=utf-8 />
</head>
<body>
<p><a id="w3r" type="text/html" hreflang="en-us" rel="nofollow" target="_self" href="https://www.w3resource.com/">w3resource</a></p>
<button onclick="getAttributes()">Click here to get  attributes value</button>
</body></html>

Sample Solution: -

HTML Code:

<!DOCTYPE html> 
<html> 
<head> 
<meta charset=utf-8 /> 
<title>Collect the value of href, hreflang, rel, target, and type attributes of a link</title> 
</head> 
<body> 
<p><a id="w3r" type="text/html" hreflang="en-us" rel="nofollow" target="_self" href="https://www.w3resource.com/">w3resource</a></p> 
<button onclick="getAttributes()">Click here to get the attribute's value</button>  
</body> 
</html>

JavaScript Code:

function getAttributes()
{
 var u = document.getElementById("w3r").href;
 alert('The value of the href attribute of the link is : '+u);
 var v = document.getElementById("w3r").hreflang;   
 alert('The value of the hreflang attribute of the link is : '+v);
 var w = document.getElementById("w3r").rel; 
  alert('The value of the rel attribute of the link is : '+w);
 var x = document.getElementById("w3r").target; 
  alert('The value of the taget attribute of the link is : '+x);
 var y = document.getElementById("w3r").type; 
  alert('The value of the type attribute of the link is : '+y);  
}

Sample Output:

Flowchart:

Live Demo:

See the Pen javascript-dom-exercise-4 by w3resource (@w3resource) on CodePen.

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());

Ref: https://bit.ly/2BXbp04