Class default

Condition engine

Index

Constructors

Methods

evaluate parse simplify statement

Constructors

constructor

new default(options?): default
Parameters
- Optionaloptions: Partial<Options>
  Parser options.
Returns default
- Defined in index.ts:73

Methods

evaluate

evaluate(exp, ctx): boolean
Evaluate the expression.
Parameters
- exp: ExpressionInput
  Raw expression.
- ctx: Context
  Evaluation data context.
Returns boolean
- Defined in index.ts:83

parse

parse(exp): Evaluable
Parse expression.
Parameters
- exp: ExpressionInput
  Raw expression.
Returns Evaluable
- Defined in index.ts:105

simplify

simplify(exp, context, strictKeys?, optionalKeys?): Input
Simplifies an expression with values in context.

This method tries to evaluate all the expressions and reduce them to its corresponding boolean value. If a value required for the expression is not present in the context, the minimal corresponding expression will be returned.
Parameters
- exp: ExpressionInput
  Raw expression.
- context: Context
  Evaluation data context.
- OptionalstrictKeys: string[] | Set<string>
  keys to be considered present even if they are not present in the context. Passing as a Set is recommended for performance reasons.
- OptionaloptionalKeys: string[] | Set<string>
  keys to be considered not present unless they are in the context or in strictKeys; when strictKeys is undefined and optionalKeys is an array, every key that is not in optionalKeys is considered to be present and thus will be evaluated. Passing as a Set is recommended for performance reasons.
Returns Input
- Defined in index.ts:126

statement

statement(exp): string
Get expression statement
Parameters
- exp: ExpressionInput
  Raw expression.
Returns string
- Defined in index.ts:96