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jQuery attr() Method

jQuery attr() methodin jQuery is used to returns attributes and values (it returns the value of the FIRST matched element) of the selected elements.

This method sets one or more attribute/value pairs for the set of matched elements.

Syntax:

Return the value of an attribute:

$(selector).attr(attribute)

Set the attribute and value:

$(selector).attr(attribute,value)

Set attribute and value using a function:

$(selector).attr(attribute,function(index,currentvalue))

Set multiple attributes and values:

$(selector).attr({attribute:value, attribute:value,...})

Parameter Values

Parameter	Description
attribute	It is used to Specifies the name of the attribute
value	It is used to Specifies the value of the attribute
function(index,currentvalue)	It is used to Specifies a function which returns the attribute value index – used to receives the index position of the element in the set currentvalue – used to receives the current selected elements of attribute value

Here is an Example of jQuery attr() Method:


<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$(".btn1").click(function(){
$(".atrimg").attr("width", "350");
});
});
</script>
</head>
<body>
<img src="C:\Users\GautamArya\Desktop\jq/1.jpg" class="atrimg" alt="Pulpit Rock" width="250" height="250"><br>
<button class="btn1">click me</button>
</body>
</html>

Output:

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