Creator Operators

• of
• from
• fromPromise
• fromEvent


• create

Creation Operator

Operator Create

Here

The business logic of how the values are generated and emitted belongs to the observable

Other Creation Operator

• timer(initDelay, period) here
• interval(period) here
• range(startNumber, count) here
• repeat here
• empty here
• throw here
• defer here

Exercice

here

• Implement a custom Observable Operator: reverseFilter Operator
• Make a counter with HTML Button Tag