The Error: unexpected end of json input occurs when the “JSON being parsed is either empty or truncated.” To fix the Error: unexpected end of json input in Go, ensure the JSON input is complete and well-formed. package main import ( “encoding/json” “fmt” ) type Student struct { Name string `json:”name”` Age int `json:”age”` } … Read more
The omitempty in Go is a “JSON struct tag option that suggests the field should be omitted from the JSON output when encoding if it has an empty value (e.g., zero value for its type)”. This can help reduce the size of the resulting JSON and make it more readable by excluding unnecessary fields. Example package … Read more
The fmt.Sscan() function in Go is used to scan the specified texts and store the successive space-separated texts into successive arguments. Syntax func Sscan(str string, a …interface{}) (n int, err error) Parameters src: The source from where the input is to be taken. This should be an object of type string. a …interface{}: The list of all … Read more
Golang math.Exp() function is “used to find the e**x, where the base-e exponential of x, where x is the input parameter.” Syntax func Exp(x float64) float64 Parameters x: It is the value of float64 type whose base-e exponential is to be found. An exception to the above statements is when you pass something that is … Read more
Golang math.Dim() function returns the maximum of x-y or 0. Syntax func Dim(x, y float64) float64 Parameters x, y: The values to get the maximum of x-y or 0. Return value It returns a single value of type float64. This value represents the difference between the two arguments (x-y) and 0. Dim(+Inf, +Inf) = NaN: … Read more
Go math.Cbrt() function is used to find the cubic root of a number. Syntax func Cbrt(x float64) float64 Parameters x: It is a value whose cube root value is to be found. Return value It returns a single value of type float64. This value represents the cube root of the argument. Below are the return … Read more
Golang math.Pow() function is “used to calculate x to the power y”. It accepts two arguments of type float64: the base and the exponent and returns a float64 value as the result of raising the base to the exponent power. Syntax func Pow(x, y float64) float64 Parameters It takes two arguments of float64 data type, which has … Read more
Golang math.Round() function is “used to find the nearest integer, rounding half away from zero”. It takes a floating-point number as an argument and returns the rounded integer value of that number. The returned value is of type float64. Syntax func Round(x float64) float64 Parameters x: The Round() function accepts a floating-point number as an … Read more
To convert a rune to a string, you can “use the string() function.” In Go, a rune is an alias for the int32 type, representing a Unicode code point. package main import “fmt” func main() { r := rune(‘K’) fmt.Println(r) // Convert rune to string s := string(r) fmt.Println(“Rune as string:”, s) } Output 75 Rune … Read more
To convert an Interface to a Struct in Golang, you can use the “interface.(Struct) method.” Type assertion lets you “specify the desired type and returns the value in that type if the assertion holds”. If the underlying value isn’t of the specified type, it will panic unless you use the two-value form. package main import … Read more
