Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

var ua = navigator.userAgent;
if (ua.indexOf('iPhone') > -1 || (ua.indexOf('Android') > -1 && ua.indexOf('Mobile') > -1)) {
    // スマートフォン
    alert('スマートフォンやで');
} else if (ua.indexOf('iPad') > -1 || ua.indexOf('Android') > -1) {
    // タブレット
    alert('タブレットやで');
} else {
    // PC
    alert('PCやで');
}

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