JSFiddle - React, Tailwind, and code Playground
HTML
<div id="generic_photo125_addinputs"><ul><li><input type="button"/></li></ul></div>
<div id="generic_photo126_addinputs"><ul><li><input type="button"/></li></ul></div>
JavaScript
var number = 126;
console.log( $("div[id*=photo" + number + "]") );
/*
please check your console for.
*/