Element.hasAttributeNS()

hasAttributeNS returns a boolean value indicating whether the current element has the specified attribute.

Syntax

result = element.hasAttributeNS(namespace,localName)

• result is the boolean value true or false.
• namespace is a string specifying the namespace of the attribute.
• localName is the name of the attribute.

Example

// Check that the attribute exists before you set a value
var d = document.getElementById("div1");
if (d.hasAttributeNS(
       "http://www.mozilla.org/ns/specialspace/",
       "special-align")) {
  d.setAttribute("align", "center");
}

Notes

DOM methods dealing with element's attributes:

Specifications

Browser compatibility