![]() Runtime errors, also called exceptions, occur during execution (after compilation/interpretation).įor example, the following line causes a runtime error because here the syntax is correct, but at runtime, it is trying to call a method that does not exist.Įxceptions also affect the thread in which they occur, allowing other JavaScript threads to continue normal execution. When a syntax error occurs in JavaScript, only the code contained within the same thread as the syntax error is affected and the rest of the code in other threads gets executed assuming nothing in them depends on the code containing the error. Syntax errors, also called parsing errors, occur at compile time in traditional programming languages and at interpret time in JavaScript.įor example, the following line causes a syntax error because it is missing a closing parenthesis. ![]() ![]() There are three types of errors in programming: (a) Syntax Errors, (b) Runtime Errors, and (c) Logical Errors.
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