jQuery - how can I select html5 custom attribute which is equal something
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if i have this:

    <span data-helo="1">something</span>
    <span data-helo="2">something different</span>

and I want to target the first span, how should i do it?

I tried smt like:

    $('span').data('helo', '1')

But it returned both spans. Thasnk for reply