/TypeScript/Check if element exists in array golang

Check if element exists in array golang

Golang check if in array

func stringInSlice(a string, list []string) bool {
    for _, b := range list {
        if b == a {
            return true
        }
    }
    return false
}

Check if element exists in array golang

Mostafa has already pointed out that such a method is trivial to write, and mkb gave you a hint to use the binary search from the sort package. But if you are going to do a lot of such contains checks, you might also consider using a map instead.

It's trivial to check if a specific map key exists by using the value, ok := yourmap[key] idiom. Since you aren't interested in the value, you might also create a map[string]struct{} for example. Using an empty struct{} here has the advantage that it doesn't require any additional space and Go's internal map type is optimized for that kind of values. Therefore, map[string] struct{} is a popular choice for sets in the Go world.

Similar codes

0 vote192 views1 answer
Give each of the radio and checkbox inputs the value attribute. Use the input label text, in lowercase, as the value for the attribute.
TypeScript
0 vote200 views1 answer
Cluster list values python
TypeScript
0 vote186 views1 answer
How to remove duplcates elements from arraylist
TypeScript
0 vote188 views1 answer
Sort function in typescript
TypeScript
0 vote177 views1 answer
Sort two lists that refence each other
TypeScript
1 vote188 views1 answer
Css selector starts with
TypeScript
0 vote209 views1 answer
Stripe create customer
TypeScript
1 vote179 views2 answers
Open vsc with admin rights linux
TypeScript
0 vote176 views1 answer
How to use if statemnts c#
TypeScript
-2 votes198 views1 answer
How to randomly generate a string in ts
TypeScript