Web Reference: Mar 28, 2026 · JavaScript error and exception handling helps developers control what happens when something goes wrong during program execution. It ensures the application continues running smoothly while providing useful feedback for debugging. Uses try and catch to detect and handle runtime errors safely. In JavaScript, the try statement is used to handle errors (also called exceptions) that may occur during code execution - without stopping the entire program. The try statement works together with catch. Jul 10, 2025 · Error is a serializable object, so it can be cloned with structuredClone() or copied between Workers using postMessage(). Besides the generic Error constructor, there are other core error constructors in JavaScript. For client-side exceptions, see Exception handling statements.
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