我有一个复选框列表,每次 puppeteer 运行测试时我都需要:
if(await page.$eval(firstcheckbox, check=>check.checked =true)) { //检查该框是否被选中 wait page.waitForSelector(do some, ele=>elem.click())//如果复选框已被选中,则移动到第二行并选择一个未装饰的框
}否则如果{
await page.$eval(firstcheckbox, check=>check.checked =false)){ //如果复选框没有被勾选 wait page.$eval(clickcheckbox, elem=>elem.click);//勾选复选框
您可以在一个内部使用所有测试和更改
page.evaluate()
:
import puppeteer from 'puppeteer';
const browser = await puppeteer.launch({ headless: false, defaultViewport: null });
const html = `
<!doctype html>
<html>
<head><meta charset='UTF-8'><title>Test</title></head>
<body>
<input type="checkbox" id="checkbox1"><label for="checkbox1">checkbox1</label><br>
<input type="checkbox" id="checkbox2" checked><label for="checkbox2">checkbox2</label><br>
<input type="checkbox" id="checkbox3" checked><label for="checkbox3">checkbox3</label><br>
<input type="checkbox" id="checkbox4"><label for="checkbox4">checkbox4</label><br>
</body>
</html>`;
try {
const [page] = await browser.pages();
await page.goto(`data:text/html,${html}`);
await page.evaluate(() => {
for (const checkbox of document.querySelectorAll('input')) {
if (!checkbox.checked) checkbox.click();
}
});
console.log('Done.');
} catch (err) { console.error(err); }
或者,如果您需要元素句柄上的循环,您可以尝试以下操作:
import puppeteer from 'puppeteer';
const browser = await puppeteer.launch({ headless: false, defaultViewport: null });
const html = `
<!doctype html>
<html>
<head><meta charset='UTF-8'><title>Test</title></head>
<body>
<input type="checkbox" id="checkbox1"><label for="checkbox1">checkbox1</label><br>
<input type="checkbox" id="checkbox2" checked><label for="checkbox2">checkbox2</label><br>
<input type="checkbox" id="checkbox3" checked><label for="checkbox3">checkbox3</label><br>
<input type="checkbox" id="checkbox4"><label for="checkbox4">checkbox4</label><br>
</body>
</html>`;
try {
const [page] = await browser.pages();
await page.goto(`data:text/html,${html}`);
for (const checkbox of await page.$$('input')) {
if (!await checkbox.evaluate(elem => elem.checked)) {
await checkbox.click();
}
}
console.log('Done.');
} catch (err) { console.error(err); }
// 使用 page.$eval 通过 id 与复选框交互
const isCheckboxSelected = await page.$eval('input[type="checkbox"][id="cricket"]', checkbox => checkbox.checked);
if (!isCheckboxSelected) {
await page.$eval('input[type="checkbox"][id="cricket"]', checkbox => checkbox.click());
}else{
conosle.log(`Checkbox is already selected, no need to click`);
}