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Most of the programming languages support multiple ways of handling errors, for example try-catching, value-checking, popping errors in the stack. Learning go I found the approach of this language is way different: you can let a function return an error (and eventual result(s)), thus not throwing any kind of error, and not returning “special values” like, for example, PHP’s json_decode (which can return true, false, NULL, stdClass or even an array!