javascript - using the data-custom="" to bind to events -


i'm pretty sure i'm gonna slammed on this.

i love using data-whatever attribute bind events to.

it feels clean me , helps reserve class attribute styling.

i know selector among slowest, don't use when there lot of elements.

would love hear compelling arguments against this.

$("body").delegate("[data-action]", "click", function(){ var action = $(this).attr("data-action");  //route action appropriate function  }); 

$("body").delegate("[data-action]", "click", function(){    ^^^^-------------------------- body high node.           ^^^^^^^^--------------- on should used instead of delegate.                     ^^^^^^^^^^^^^ attribute selector slow selector.

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