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Symbols used to detail how CanJS may operate on different objects CanJS has a consistent internal interface for objects to interact with each other, and this is also important for interop with external libraries. CanJS uses symbols to identify object types, property access methods, and for event handling.
can-symbol also has a polyfill function that will fake symbols on unsupported platforms.
canSymbol(String)
Create or reuse symbols based on an optional string description
var MyIDSymbol = CanSymbol("my_ID");
// ES5
var obj = {};
obj[MyIDSymbol] = 1;
// ES6 and above
const obj = {
[myIDSymbol]: 1
};