Puppeteer: Click on element with text

问题

Is there any method(didn't find in API) or solution to click on element with text?

For example i have html:

<div class="elements">
    <button>Button text</button>
    <a href=#>Href text</a>
    <div>Div text</div>
</div>

And I want to click on element in which text is wrapped(Click on button inside .elements), like:

Page.click('Button text', '.elements')

Any solution?

回答1:

You may use a XPath selector with page.$x(expression):

const linkHandlers = await page.$x("//a[contains(text(), 'Some text')]");

if (linkHandlers.length > 0) {
  await linkHandlers[0].click();
} else {
  throw new Error("Link not found");
}

Check out clickByText in this gist for a complete example. It takes care of escaping quotes, which is a bit tricky with XPath expressions.

回答2:

The current top answer by tokland only works on text nodes and not on nodes with other elements inside.

Short answer

This XPath expression will query a button which contains the text "Button text":

const [button] = await page.$x("//button[contains(., 'Button text')]");
if (button) {
    await button.click();
}

To also respect the <div class="elements"> surrounding the buttons, use the following code:

const [button] = await page.$x("//div[@class='elements']/button[contains(., 'Button text')]");

Explanation

To explain why using the text node (text()) is wrong in some cases, let's look at an example:

<div>
    <button>Start End</button>
    <button>Start <em>Middle</em> End</button>
</div>

First, let's check the results when using contains(text(), 'Text'):

//button[contains(text(), 'Start')] will return both two nodes (as expected)
//button[contains(text(), 'End')] will only return one nodes (the first) as text() returns a list with two texts (Start and End), but contains will only check the first one
//button[contains(text(), 'Middle')] will return no results as text() does not include the text of child nodes

Here are the XPath expressions for contains(., 'Text'), which works on the element itself including its child nodes:

//button[contains(., 'Start')] will return both two buttons
//button[contains(., 'End')] will again return both two buttons
//button[contains(., 'Middle')] will return one (the last button)

So in most cases, it makes more sense to use the . instead of text() in an XPath expression.

回答3:

made quick solution to be able to use advanced css selectors like ":contains(text)"

so using this library you can just

const select = require ('puppeteer-select');

const element = await select(page).getElement('button:contains(Button text)');
await element.click()

回答4:

You can also use page.evaluate() to click elements obtained from document.querySelectorAll() that have been filtered by text content:

await page.evaluate(() => {
  [...document.querySelectorAll('.elements button')].find(element => element.textContent === 'Button text').click();
});

Alternatively, you can use page.evaluate() to click an element based on its text content using document.evaluate() and a corresponding XPath expression:

await page.evaluate(() => {
  const xpath = '//*[@class="elements"]//button[contains(text(), "Button text")]';
  const result = document.evaluate(xpath, document, null, XPathResult.ANY_TYPE, null);

  result.iterateNext().click();
});

回答5:

Here is my solution:

let selector = 'a';
    await page.$$eval(selector, anchors => {
        anchors.map(anchor => {
            if(anchor.textContent == 'target text') {
                anchor.click();
                return
            }
        })
    });

回答6:

The solution is

(await page.$$eval(selector, a => a
            .filter(a => a.textContent === 'target text')
))[0].click()

回答7:

There is no supported css selector syntax for text selector or a combinator option, my work around for this would be:

await page.$$eval('selector', selectorMatched => {
    for(i in selectorMatched)
      if(selectorMatched[i].textContent === 'text string'){
          selectorMatched[i].click();
          break;//Remove this line (break statement) if you want to click on all matched elements otherwise the first element only is clicked  
        }
    });

来源：https://stackoverflow.com/questions/47407791/puppeteer-click-on-element-with-text

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Puppeteer