Are parameters in JavaScript optional?

In JavaScript coding, you often need to make function parameters optional . When you’re using JavaScript functions, there are two types of parameters: mandatory parameters and optional parameters. In the case of mandatory parameters, you must pass those parameters, otherwise JavaScript throws an error.

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Are parameters in JavaScript optional?

In JavaScript coding, you often need to make function parameters optional . When you’re using JavaScript functions, there are two types of parameters: mandatory parameters and optional parameters. In the case of mandatory parameters, you must pass those parameters, otherwise JavaScript throws an error.

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What are optional parameters in Dart?

Optional parameters are parameters which don’t have to be specified when calling given function . Optional parameters must be declared after required parameters. Additionally, optional parameters can have a default value, which is used once the function invocation doesn’t specify it.17 Oca 2019

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