Define a lazily evaluated property on an object
npm install define-lazy-prop> Define a lazily evaluated property on an object
Useful when the value of a property is expensive to generate, so you want to delay the computation until the property is needed. For example, improving startup performance by deferring nonessential operations.
``
$ npm install define-lazy-prop
`js
import defineLazyProperty from 'define-lazy-prop';
const unicorn = {
// …
};
defineLazyProperty(unicorn, 'rainbow', () => expensiveComputation());
app.on('user-action', () => {
doSomething(unicorn.rainbow);
});
`
#### object
Type: object
Object to add the property to.
#### propertyName
Type: string
Name of the property to add.
#### valueGetter
Type: Function
Called the first time propertyName` is accessed. Expected to return a value.
- lazy-value - Create a lazily evaluated value
- import-lazy - Import a module lazily
- p-lazy - Create a lazy promise