If you have a map in Go and want to only perform an action if it contains a certain key, then you can do so easily:
if val, ok := myMap["someValue"]; ok {
// your code here
}
The way this works is the conditional if statement checks to see if a value of someValue exists in the myMap map variable.
If it exists, it assigns the key’s value to a val variable, and assigns the ok variable to a truthy boolean.
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