Question

I have often seen this expression in a maintenance code

Global["Name"]

What does this represent? I have used Global.Name but never Global["Name"]?

Is there are a place where this type of expression is used?

Answer 1

It’s used when looking up dictionaries and collections containing key/value pairs, eg.

var peopleAges = new System.Collections.Generic.Dictionary<string, int>();
peopleAges["fred"] = 21;
peopleAges["emma"] = 18;

var fredAge = peopleAges["fred"];  // returns 21