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up.element up.element.jsonAttr(element, attribute)
JavaScript function

Reads the given attribute from the element, parsed as relaxed JSON.

Returns undefined if the attribute value is blank or only consists of whitespace.

Throws a SyntaxError if the attribute value is an invalid JSON string.


Parameters

element
required

The element from which to retrieve the attribute value.

attribute
required

The attribute name.

string

Return value

The cast attribute value.