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.data()

Get or Set the node dataset attribute value.

Variations​

.data( String a ): String​

Returns the first element's dataset data-{key} value matched by the DoMini object.

$("p").data('customData');

.data( String a, Int|String v ): self​

Sets the node dataset data-{key} value to the argument value of the elements matched.

$("p").data('customData', 'value');