In Dart, a **symbol** object represents an operator or identifier declared in a Dart program. Symbols cannot be changed as they are compile-time constants. This makes them invaluable for APIs that refer to identifiers by name because minification replaces identifier names, but not identifier symbols. 

>Symbols are *rarely* used these days and libraries, like the MirrorSystem that supports them, have been deprecated.

# Usage
Prefixing any identifier with `#` makes it into a symbol literal:

```
#foo
#bar
// To get the symbol for an identifier, use a symbol literal, which is just # followed by the identifier
```

The syntax to declare a symbol is:





import 'dart:convert';

void main() {
    Symbol object = new Symbol('name');
    // name must be a valid public Dart member name, public constructor name, or library name.
    print(object);
}

What is a Dart symbol?

Symbols in Dart represent operators or identifiers as immutable, compile-time constants, useful in APIs for identifier names amid minification.