JSFiddle - React, Tailwind, and code Playground
HTML
<input/>
<button>go</button>
JavaScript
$("button").click(function() {
var keywords = ["yolo", "bieber", "justin bieber", "bieber fever", "moscow", "swag", "swaq", "cole"];
// Cole one is irrelevant to all but one
if (keywords.indexOf($("input").val().toLowerCase()) != -1) {
alert("This isn't Twitter, Brickhouse.");
} else {
alert("NO");
}
});