Class ExpressionCalculator

Implements an expression calculator class.

Hierarchy

ExpressionCalculator

Index

Constructors

constructor

Accessors

Methods

Constructors

constructor

new ExpressionCalculator(expression?: string): ExpressionCalculator

- Defined in calculator/ExpressionCalculator.ts:28
Constructs this class and assigns expression string.

Parameters
- Optional expression: string
  
  The expression string.
Returns ExpressionCalculator

Accessors

autoVariables

get autoVariables(): boolean
set autoVariables(value: boolean): void

- Defined in calculator/ExpressionCalculator.ts:71
Gets the flag to turn on auto creation of variables for specified expression.

Returns boolean
- Defined in calculator/ExpressionCalculator.ts:78
Sets the flag to turn on auto creation of variables for specified expression.

Parameters
- value: boolean
Returns void

defaultFunctions

get defaultFunctions(): IFunctionCollection

- Defined in calculator/ExpressionCalculator.ts:106
The list with default functions.

Returns IFunctionCollection

defaultVariables

get defaultVariables(): IVariableCollection

- Defined in calculator/ExpressionCalculator.ts:99
The list with default variables.

Returns IVariableCollection

expression

get expression(): string
set expression(value: string): void

- Defined in calculator/ExpressionCalculator.ts:43
The expression string.

Returns string
- Defined in calculator/ExpressionCalculator.ts:50
The expression string.

Parameters
- value: string
Returns void

initialTokens

get initialTokens(): ExpressionToken[]

- Defined in calculator/ExpressionCalculator.ts:113
The list of original expression tokens.

Returns ExpressionToken[]

originalTokens

get originalTokens(): Token[]
set originalTokens(value: Token[]): void

- Defined in calculator/ExpressionCalculator.ts:57
Returns Token[]
- Defined in calculator/ExpressionCalculator.ts:61
Parameters
- value: Token[]
Returns void

resultTokens

get resultTokens(): ExpressionToken[]

- Defined in calculator/ExpressionCalculator.ts:120
The list of processed expression tokens.

Returns ExpressionToken[]

variantOperations

get variantOperations(): IVariantOperations
set variantOperations(value: IVariantOperations): void

- Defined in calculator/ExpressionCalculator.ts:85
Gets the manager for operations on variant values.

Returns IVariantOperations
- Defined in calculator/ExpressionCalculator.ts:92
Sets the manager for operations on variant values.

Parameters
- value: IVariantOperations
Returns void

Methods

clear

clear(): void

- Defined in calculator/ExpressionCalculator.ts:139
Cleans up this calculator from all data.

Returns void

createVariables

createVariables(variables: IVariableCollection): void

- Defined in calculator/ExpressionCalculator.ts:128
Populates the specified variables list with variables from parsed expression.

Parameters
- variables: IVariableCollection
  
  The list of variables to be populated.
Returns void

evaluate

evaluate(callback: function): void

- Defined in calculator/ExpressionCalculator.ts:148
Evaluates this expression using default variables and functions.

Parameters
- callback: function
  
  The callback to receive the evaluation results
  - - (err: any, result: Variant): void
    - Parameters
      - err: any
      - result: Variant
      Returns void
Returns void

evaluateWithVariables

evaluateWithVariables(variables: IVariableCollection, callback: function): void

- Defined in calculator/ExpressionCalculator.ts:157
Evaluates this expression using specified variables.

Parameters
- variables: IVariableCollection
  
  The list of variables
- callback: function
  
  The callback to receive the evaluation results
  - - (err: any, result: Variant): void
    - Parameters
      - err: any
      - result: Variant
      Returns void
Returns void

evaluateWithVariablesAndFunctions

evaluateWithVariablesAndFunctions(variables: IVariableCollection, functions: IFunctionCollection, callback: function): void

- Defined in calculator/ExpressionCalculator.ts:168
Evaluates this expression using specified variables and functions.

Parameters
- variables: IVariableCollection
  
  The list of variables
- functions: IFunctionCollection
  
  The list of functions
- callback: function
  
  The callback to receive the evaluation results
  - - (err: any, result: Variant): void
    - Parameters
      - err: any
      - result: Variant
      Returns void
Returns void

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