JSFiddle - React, Tailwind, and code Playground

HTML

<div data-api-src="some value">a</div>
<div data-api-myattr="foobar">b</div>
<div>c</div>

JavaScript

$.expr[':'].hasAttrWithPrefix = function(obj, idx, meta, stack) {
    for (var i = 0; i < obj.attributes.length; i++) {
        if (obj.attributes[i].nodeName.indexOf(meta[3]) === 0) return true;
    };
    return false;
};

$('div:hasAttrWithPrefix(data-api-)').css('color', 'red');