What is optional parameter in flutter?

Named optional parameters You can call getHttpUrl with or without the third parameter. You must use the parameter name when calling the function. You can specify multiple named parameters for a function: getHttpUrl(String server, String path, {int port = 80, int numRetries = 3}) { // … }

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What is optional parameter in flutter?

Named optional parameters You can call getHttpUrl with or without the third parameter. You must use the parameter name when calling the function. You can specify multiple named parameters for a function: getHttpUrl(String server, String path, {int port = 80, int numRetries = 3}) { // … }

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