JSFiddle - React, Tailwind, and code Playground

HTML

<select id="cmbOperator">
    <option value="1">Select</option>
    <option value="1">Mary</option>
    <option value="2">John</option>
    <option value="3">Victor</option>
</select>
<button id="btn">Button</button>

JavaScript

$(document).ready(function () {
    $("#btn").click(function(){
        var name ="John";
        $("#cmbOperator option:contains(" + name + ")").attr('selected', true);
    });
});