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alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cssFloat cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex

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Other References

CSSStyleDeclaration JS Conversion


HTML DOM Element setAttributeNode()

Example

Set the class attribute node of the first <h1> element:

const attr = document.createAttribute("class");
attr.value = "democlass";

const h1 = document.getElementsByTagName("H1")[0];
h1.setAttributeNode(attr);

Before:

Hello World

After:

Hello World

Try it Yourself »

More examples below.


Definition and Usage

The setAttributeNode() method adds an attribute node to an element.

The setAttributeNode() method replaces existing attribute nodes.

The setAttributeNode() method returns an Attribute object.


The Difference Between setAttribute() and setAttributeNode()

The setAttribute() method replaces attribute values.

The setAttributeNode() method replaces Attribute objects.

You must create an Attr object and set the Attr value before adding the attribute to an element.

The result will be the same.



Syntax

element.setAttributeNode(node)

Parameters

Parameter Description
node Required.
The attribute node to add.

Return Value

Type Description
ObjectAn Attr object representing the replaced attribute node.
Or null if no attribute is replaced.


More Examples

Set the href attribute node of a <a> element:

const attr = document.createAttribute("href");
attr.value = "https://www.w3schools.com";

const anchor = document.getElementById("myAnchor");
anchor.setAttributeNode(attr);

Before:

Go to w3schools.com

After:

Try it Yourself »

Browser Support

element.setAttributeNode() is a DOM Level 1 (1998) feature.

It is fully supported in all browsers:

Chrome IE Edge Firefox Safari Opera
Yes 9-11 Yes Yes Yes Yes