javascript - JQuery is(":focus") -

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it seems reason, cannot perform:

$(".exampleclass")[0].is(":focus");

it tells me - typeerror: undefined not function. trying grab few elements jquery, scan through them, , find 1 focused (so can focus next element in array programmatically).

var fields = $(".textfield");             var selected = false;             for(var j = 0; j < fields.length; j++){                 var field = fields[j];                 console.log(field);                 if(selected){                     field.focus();                 }else if(field.is(':focus') && !selected ){                     selected = true;                 }             }

it works fine until field.is(':focus') why won't work?

when index jquery object [ ] operator, extract underlying component of list of matched elements. component dom node, , won't have .is() method.

if coded like

$(".exampleclass").eq(0).is(":focus");

you'd working jquery object, , wouldn't have problem.


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