isSelected

将返回 <option> 或 <input> 元素（类型为复选框或单选按钮）当前是否被选中的布尔值。

用法

$(selector).isSelected()

示例

index.html

<select name="selectbox" id="selectbox">
    <option value="John Doe">John Doe</option>
    <option value="Layla Terry" selected="selected">Layla Terry</option>
    <option value="Bill Gilbert">Bill Gilbert"</option>
</select>

isSelected.js

it('should detect if an element is selected', async () => {
    let element = await $('[value="Layla Terry"]');
    console.log(await element.isSelected()); // outputs: true

    element = await $('[value="Bill Gilbert"]')
    console.log(await element.isSelected()); // outputs: false
});