isEnabled
選択されたDOM要素が有効かどうかをtrueまたはfalseで返します。
使い方
$(selector).isEnabled()
例
index.html
<input type="text" name="inputField" class="input1">
<input type="text" name="inputField" class="input2" disabled>
<input type="text" name="inputField" class="input3" disabled="disabled">
isEnabled.js
it('should detect if an element is enabled', async () => {
    let elem = await $('.input1')
    let isEnabled = await elem.isEnabled();
    console.log(isEnabled); // outputs: true
    elem = await $('.input2')
    isEnabled = await elem.isEnabled();
    console.log(isEnabled2); // outputs: false
    elem = await $('.input3')
    isEnabled = await elem.isEnabled();
    console.log(isEnabled3); // outputs: false
});