xgo/example_test.go

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package tengo_test
import (
"context"
"fmt"
"github.com/d5/tengo"
)
func Example() {
// Tengo script code
src := `
each := func(seq, fn) {
for x in seq { fn(x) }
}
sum := 0
mul := 1
each([a, b, c, d], func(x) {
sum += x
mul *= x
})`
// create a new Script instance
script := tengo.NewScript([]byte(src))
// set values
_ = script.Add("a", 1)
_ = script.Add("b", 9)
_ = script.Add("c", 8)
_ = script.Add("d", 4)
// run the script
compiled, err := script.RunContext(context.Background())
if err != nil {
panic(err)
}
// retrieve values
sum := compiled.Get("sum")
mul := compiled.Get("mul")
fmt.Println(sum, mul)
// Output:
// 22 288
}