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In this article, the editor introduces in detail "what is throw in javascript", the content is detailed, the steps are clear, and the details are handled properly. I hope that this article "what is throw in javascript" can help you solve your doubts.

In JavaScript, throw means "throw an exception"; the throw statement creates a custom error, and when an error occurs, JavaScript stops execution and throws an error message with the syntax "throw expression;".

The operating environment of this tutorial: windows10 system, javascript1.8.5 version, Dell G3 computer.

What does throw mean in javascript

The throw statement throws an error.

When an error occurs, JavaScript stops execution and throws an error message.

The technical term to describe this situation is: JavaScript will throw an error.

The throw statement creates a custom error.

The technical term is: throw an exception.

Exceptions can be JavaScript strings, numbers, logical values, or objects:

Throw "Too big"; / / throw the text throw 500; / / throw a number

If you use throw with try and catch, you can control the program flow and generate custom error messages.

The syntax is:

Throw expression

Where expression represents the exception thrown

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