jsc

Documentation

Index

• Constants
• Variables
• func Cast[T ObjectConstraints](value js.Value) (T, error)
• func IsArray(value js.Value) bool
• func IsDataView(value js.Value) bool
• func IsSlice(value js.Value) bool
• func IsTypedArray(value js.Value) bool
• func JSToSlice[T ObjectConstraints](arr js.Value) (array []T, errorCasting error)
• func MustValuesOf(f ...interface{}) []js.Value
• func MustValuesOfInterface(f ...interface{}) []interface{}
• func Scan(src js.Value, dst interface{}) error
• func ValueOf(f interface{}) (js.Value, error)
• func ValuesOf(f ...interface{}) ([]js.Value, error)
• func ValuesOfInterface(f ...interface{}) ([]interface{}, error)
• type ObjectConstraints

Constants

const (
	ErrUndefined errs.Error = "src is null or undefined"
	ErrNil       errs.Error = "dst is nil"
	ErrNotPtr    errs.Error = "dst is not a pointer"
	ErrNotValid  errs.Error = "dst is not a pointer to a struct, map, or slice"
	ErrNotStruct errs.Error = "dst is not a pointer to a struct"
	ErrCannotSet errs.Error = "cannot set dst field"
)

Variables

var BASE64 = true

Wether to encode and decode bytes using base64.

var TINYGO bool

TINYGO is used to check if we are using tinygo as a compiler.

Functions

func Cast

func Cast[T ObjectConstraints](value js.Value) (T, error)

Cast a value to the correct type, return an error if the javascript value is not the correct type.

Supported types are:

• string (js.TypeString)
• int, int8, int16, int32, int64 (js.TypeNumber)
• uint, uint8, uint16, uint32, uint64 (js.TypeNumber)
• float32, float64 (js.TypeNumber)
• bool (js.TypeBoolean)
• js.Value (js.TypeObject)
• []byte (js.TypeObject)
• []interface{} (js.TypeObject)
• map[string]interface{} (js.TypeObject)
• interface{} (we don't know the type, but we can try to guess it.)

func IsArray

func IsArray(value js.Value) bool

func IsDataView

func IsDataView(value js.Value) bool

func IsSlice

func IsSlice(value js.Value) bool

func IsTypedArray

func IsTypedArray(value js.Value) bool

func JSToSlice

func JSToSlice[T ObjectConstraints](arr js.Value) (array []T, errorCasting error)

Convert a js.Value array to a []interface{}.

func MustValuesOf

func MustValuesOf(f ...interface{}) []js.Value

MustValuesOf will return the js.Value of the given values. This can be useful for inlining known-safe types.

func MustValuesOfInterface

func MustValuesOfInterface(f ...interface{}) []interface{}

MustValuesOfInterface will return the js.Value of the given values in an array of interface{}. This can be useful for inlining known-safe types.

This is a helper function, since js.(Value).Call or set will not take a slice of js.Value.

func Scan

func Scan(src js.Value, dst interface{}) error

func ValueOf

func ValueOf(f interface{}) (js.Value, error)

ValueOf will return the js.Value of the given value. It will return an error if the value is not supported.

func ValuesOf

func ValuesOf(f ...interface{}) ([]js.Value, error)

ValuesOf will return the js.Value of the given values. It will return an error if interface{} of the value are not supported.

func ValuesOfInterface

func ValuesOfInterface(f ...interface{}) ([]interface{}, error)

ValuesOfInterface will return the js.Value of the given values in an array of interface{}. It will return an error if interface{} of the value are not supported.

This is a helper function, since js.(Value).Call or set will not take a slice of js.Value.

Types

type ObjectConstraints

type ObjectConstraints interface {
	string | int | int8 | int16 | int32 | int64 |
		uint | uint8 | uint16 | uint32 | uint64 |
		float64 | float32 | bool | js.Value |
		[]byte | []interface{} | map[string]interface{} | interface{}
}

Convert a js.Value to a map[string]T.