// The JavaScript code can be executed in a <script> tag within the HTML document or in an external JavaScript file.
The HTML code above includes a <script> tag which contains JavaScript code. The JavaScript code defines a function named triggerUncaughtException() that triggers an uncaught exception. The function takes two parameters: err (the error message) and fromPromise (a boolean indicating whether the error should be thrown directly or as a rejected promise).
Inside the function, there is a conditional statement that checks the value of fromPromise. If it is true, a promise is created using Promise.reject() which immediately rejects with the given error message. If it is false, an error is thrown directly using the throw statement.
In the example, the function triggerUncaughtException() is called with the error message “Uncaught Exception!” and the boolean value true. Since the second parameter is true, a promise is created and rejected with the error message. However, since there is no error handling for the rejected promise or an explicit rejection handler, the code produces an uncaught exception.
To handle the uncaught exception, a try...catch statement is used. The code inside the try block attempts to call the triggerUncaughtException() function. If an exception occurs, the catch block is executed and the error object is caught and logged by the console.error() method.
Note that this HTML code has been wrapped in a <div> tag for formatting purposes, but in a complete HTML document, it should be placed within the <body> tag.
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