[Solved] Which of the following is the correct syntax to execute an async script in Selenium Java? — Ans: driver.executeAsyncScript("var callback = arguments[0]; setTimeout(() =>... | Selenium Java

Selenium Java - JavaScriptExecutor

Which of the following is the correct syntax to execute an async script in Selenium Java?

Adriver.executeAsyncScript("var callback = arguments[0]; setTimeout(() => callback(10), 1000);");

Bdriver.executeAsyncScript("return 5 + 5;");

Cdriver.executeScript("var callback = arguments[0]; callback(10);");

Ddriver.executeAsyncScript(() -> { return 10; });

Step-by-Step Solution

Solution:

Step 1: Identify async script syntax
Async scripts require a callback function as the last argument to signal completion.
Step 2: Check each option
driver.executeAsyncScript("var callback = arguments[0]; setTimeout(() => callback(10), 1000);"); correctly defines a callback and calls it after 1 second delay. driver.executeAsyncScript("return 5 + 5;"); lacks callback, C uses executeScript (sync), D uses wrong syntax.
Final Answer:
driver.executeAsyncScript("var callback = arguments[0]; setTimeout(() => callback(10), 1000);"); -> Option A
Quick Check:
Callback with setTimeout = A [OK]

Quick Trick: Async scripts need callback as last argument [OK]

Common Mistakes:

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Which of the following is the correct syntax to execute an async script in Selenium Java?