Using
page.waitForSelector() method, we can wait for the selector certain amount of
time.
Example
page.waitForSelector("#result", waitForSelectorOptions)
Find the below working application.
waitForElement.html
<!DOCTYPE html>
<html>
<head> </head>
<body>
See the result here
<script>
setTimeout(() => {
const para = document.createElement("p");
para.setAttribute("id", "result");
document.body.appendChild(para);
document.getElementById("result").innerHTML = "<b>Hello World</b>";
}, 3000);
</script>
</body>
</html>
FileUtil.java
package com.sample.app.util;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class FileUtil {
public static String resourceAsString(String resourceName) throws IOException {
ClassLoader classLoader = FileUtil.class.getClassLoader();
URL url = classLoader.getResource(resourceName);
if (url == null) {
return null;
}
URLConnection urlConnection = url.openConnection();
urlConnection.setUseCaches(false);
try (InputStreamReader inputStreamReader = new InputStreamReader(urlConnection.getInputStream())) {
char[] buffer = new char[1048];
StringBuilder builder = new StringBuilder();
int count = -1;
while ((count = inputStreamReader.read(buffer, 0, buffer.length)) != -1) {
builder.append(buffer, 0, count);
}
return builder.toString();
}
}
}
WaitForAnElement.java
package com.sample.app.miscellaneous;
import java.io.File;
import java.io.IOException;
import com.microsoft.playwright.Browser;
import com.microsoft.playwright.BrowserType;
import com.microsoft.playwright.Page;
import com.microsoft.playwright.Page.WaitForSelectorOptions;
import com.microsoft.playwright.Playwright;
import com.sample.app.util.FileUtil;
public class WaitForAnElement {
public static void main(String[] args) throws IOException {
try (Playwright playwright = Playwright.create()) {
Browser browser = playwright.chromium()
.launch(new BrowserType.LaunchOptions().setHeadless(false).setSlowMo(100));
final String content = FileUtil.resourceAsString("miscellaneous" + File.separator + "waitForElement.html");
Page page = browser.newPage();
page.setContent(content);
WaitForSelectorOptions waitForSelectorOptions = new WaitForSelectorOptions();
waitForSelectorOptions.setTimeout(5000);
String resultData = page.waitForSelector("#result", waitForSelectorOptions).textContent();
System.out.println(resultData);
}
}
}
Output
Hello World
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