30秒学会 Golang 片段 – Includes

Returns true if the given element can be found in the collection, false otherwise.

Use reflect.ValueOf() to get the array or slice and the value to search for.
Use a for loop with Value.Len() and Value.Index() to iterate over each element and compare it to the search value.
Return true if a matching value is found, false otherwise.

代码实现

import "reflect"

func Includes(params ...interface{}) bool {
    arr, v := reflect.ValueOf(params[0]),
        reflect.ValueOf(params[1]).Interface()

    for i := 0; i < arr.Len(); i++ {
        if arr.Index(i).Interface() == v {
            return true
        }
    }
    return false
}

使用样例

MySnippet() // "result"