JSFiddle - React, Tailwind, and code Playground

HTML

<input id="test1foo" />
<input id="test2foo" />
<input id="testbar" />

JavaScript

String.prototype.endsWith = function(suffix) {
    return this.indexOf(suffix, this.length - suffix.length) !== -1;
};

function getInputsThatEndWith(text) {
    
    var result = new Array();
    var inputs = document.getElementsByTagName("input");
    
    for(var i=0; i < inputs.length; i++) {
        if(inputs[i].id.endsWith(text))
            result.push(inputs[i]);
    }
    
    return result;
}

console.log(getInputsThatEndWith("foo"))