isExisting

如果元素存在于DOM中，则返回true。

信息

与其他元素命令不同，WebdriverIO在执行此命令时不会等待元素存在。

用法

$(selector).isExisting()

示例

index.html

<div id="notDisplayed" style="display: none"></div>
<div id="notVisible" style="visibility: hidden"></div>
<div id="notInViewport" style="position:absolute; left: 9999999"></div>
<div id="zeroOpacity" style="opacity: 0"></div>

isExisting.js

it('should detect if elements are existing', async () => {
    let elem = await $('#someRandomNonExistingElement')
    let isExisting = await elem.isExisting()
    console.log(isExisting); // outputs: false

    elem = await $('#notDisplayed')
    isExisting = await elem.isExisting()
    console.log(isExisting); // outputs: true

    elem = await $('#notVisible')
    isExisting = await elem.isExisting()
    console.log(isExisting); // outputs: true

    elem = await $('#notInViewport')
    isExisting = await elem.isExisting()
    console.log(isExisting); // outputs: true

    elem = await $('#zeroOpacity')
    isExisting = await elem.isExisting()
    console.log(isExisting); // outputs: true
});

返回值

• <Boolean> return: 如果元素存在则返回true