Class RPNCalculator

Our RPNCalculator

Hierarchy

RPNCalculator

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new RPNCalculator(config: ConfigType): RPNCalculator

- Defined in src/core/RPNCalculator.ts:17
Parameters
- config: ConfigType
Returns RPNCalculator

Properties

Private linkedStack

linkedStack: LinkedStack

Private operationsRegistry

operationsRegistry: OperationRegistry

Methods

calculate

calculate(): string | number

- Defined in src/core/RPNCalculator.ts:39
Fetches the first operand and the node pair before it, proceed them and returns result or recursively calls itself if the stack contains other values

Returns string | number

Private getFirstOperationNodeInList

getFirstOperationNodeInList(): null | Node

- Defined in src/core/RPNCalculator.ts:100
Returns null | Node

Private getNodePairBeforeOperation

getNodePairBeforeOperation(operationNode: Node): { firstNode: null | Node; lastNode: null | Node }

- Defined in src/core/RPNCalculator.ts:109
Parameters
- operationNode: Node
Returns { firstNode: null | Node; lastNode: null | Node }
- firstNode: null | Node
- lastNode: null | Node

Private prepareItemToNode

prepareItemToNode(item: string): string | number

- Defined in src/core/RPNCalculator.ts:67
Parameters
- item: string
Returns string | number

Private provideResult

provideResult(initialResult?: number, firstNode: Node | null): number

- Defined in src/core/RPNCalculator.ts:79
Parameters
- Default value initialResult: number = 0
- firstNode: Node | null
Returns number

pushItem

pushItem(item: string): void

- Defined in src/core/RPNCalculator.ts:29
Parameters
- item: string
Returns void

reset

reset(): void

- Defined in src/core/RPNCalculator.ts:63
Returns void

Private runOperation

runOperation(num1: number, num2: number, symbol: string): undefined | number

- Defined in src/core/RPNCalculator.ts:91
Parameters
- num1: number
- num2: number
- symbol: string
Returns undefined | number

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