up.element
up.element.attr(element, attribute)
JavaScript function
JavaScript function
Returns the given attribute value for the given element.
If the element does not have the given attribute, it returns undefined.
This is a difference from the native Element#getAttribute(), which mostly returns null in that case.
If the element has the attribute but without a value (e.g. <input readonly>), it returns an empty string.
Parameters
element
attribute
required
The name of the attribute to read.
Type: string
Return value
The attribute value.
Returns undefined if the attribute is not set on the given element.
Type: string | undefined