JSFiddle - React, Tailwind, and code Playground
HTML
<span class="Name">Bear</span>
JavaScript
var myarray = ['One', 'Bear', 'Two', 'Bla', 'Red'];
if($.inArray($(".Name").text(), myarray)!=-1) {
alert("is in array");
}
<span class="Name">Bear</span>
var myarray = ['One', 'Bear', 'Two', 'Bla', 'Red'];
if($.inArray($(".Name").text(), myarray)!=-1) {
alert("is in array");
}