time-to-botec

Benchmark sampling in different programming languages
Log | Files | Refs | README

index.d.ts (806B)

      1 /**
      2 Define a [lazily evaluated](https://en.wikipedia.org/wiki/Lazy_evaluation) property on an object.
      3 
      4 @param object - Object to add the property to.
      5 @param propertyName - Name of the property to add.
      6 @param valueGetter - Called the first time `propertyName` is accessed.
      7 
      8 @example
      9 ```
     10 import defineLazyProperty from 'define-lazy-prop';
     11 
     12 const unicorn = {
     13 	// …
     14 };
     15 
     16 defineLazyProperty(unicorn, 'rainbow', () => expensiveComputation());
     17 
     18 app.on('user-action', () => {
     19 	doSomething(unicorn.rainbow);
     20 });
     21 ```
     22 */
     23 export default function defineLazyProperty<
     24 	ObjectType extends Record<string, any>,
     25 	PropertyNameType extends string,
     26 	PropertyValueType
     27 >(
     28 	object: ObjectType,
     29 	propertyName: PropertyNameType,
     30 	valueGetter: () => PropertyValueType
     31 ): ObjectType & {[K in PropertyNameType]: PropertyValueType};