/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

19 votes234 views3 answers
Yarn.ps1 cannot be loaded because running scripts is disabled on this system
TypeScript
0 vote240 views2 answers
Get string in brackets python
TypeScript
12 votes247 views2 answers
How to make a bool appear in all scripts unity
TypeScript
0 vote247 views1 answer
C# get all elements from list
TypeScript
0 vote216 views1 answer
What is the importance of testng xml file
TypeScript
0 vote231 views2 answers
Angular http
TypeScript
0 vote277 views1 answer
Stratford school academy
TypeScript
0 vote243 views1 answer
Send tcp packets to kubernetes node
TypeScript
1 vote231 views1 answer
Geting request header in loopback4
TypeScript
5 votes233 views1 answer
Heroku database error unknow attribute first_name for user
TypeScript